Docs: lint JSDoc annotations when building docs

lib/channel.js

@@ -60,7 +60,7 @@ function ensureAlpha () {
  *     // green.jpg is a greyscale image containing the green channel of the input
  *    });
  *
- * @param {Number|String} channel - zero-indexed band number to extract, or `red`, `green` or `blue` as alternative to `0`, `1` or `2` respectively.
+ * @param {number|string} channel - zero-indexed band number to extract, or `red`, `green` or `blue` as alternative to `0`, `1` or `2` respectively.
  * @returns {Sharp}
  * @throws {Error} Invalid channel
  */
@@ -91,7 +91,7 @@ function extractChannel (channel) {
  * Buffers may be any of the image formats supported by sharp: JPEG, PNG, WebP, GIF, SVG, TIFF or raw pixel image data.
  * For raw pixel input, the `options` object should contain a `raw` attribute, which follows the format of the attribute of the same name in the `sharp()` constructor.
  *
- * @param {Array<String|Buffer>|String|Buffer} images - one or more images (file paths, Buffers).
+ * @param {Array<string|Buffer>|string|Buffer} images - one or more images (file paths, Buffers).
  * @param {Object} options - image options, see `sharp()` constructor.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
@@ -119,7 +119,7 @@ function joinChannel (images, options) {
  *     // then `O(1,1) = 0b11110111 & 0b10101010 & 0b00001111 = 0b00000010 = 2`.
  *   });
  *
- * @param {String} boolOp - one of `and`, `or` or `eor` to perform that bitwise operation, like the C logic operators `&`, `|` and `^` respectively.
+ * @param {string} boolOp - one of `and`, `or` or `eor` to perform that bitwise operation, like the C logic operators `&`, `|` and `^` respectively.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */

lib/colour.js

@@ -19,7 +19,7 @@ const colourspace = {
  * Tint the image using the provided chroma while preserving the image luminance.
  * An alpha channel may be present and will be unchanged by the operation.
  *
- * @param {String|Object} rgb - parsed by the [color](https://www.npmjs.org/package/color) module to extract chroma values.
+ * @param {string|Object} rgb - parsed by the [color](https://www.npmjs.org/package/color) module to extract chroma values.
  * @returns {Sharp}
  * @throws {Error} Invalid parameter
  */
@@ -57,7 +57,7 @@ function grayscale (grayscale) {
 /**
  * Set the output colourspace.
  * By default output image will be web-friendly sRGB, with additional channels interpreted as alpha channels.
- * @param {String} [colourspace] - output colourspace e.g. `srgb`, `rgb`, `cmyk`, `lab`, `b-w` [...](https://github.com/libvips/libvips/blob/master/libvips/iofuncs/enumtypes.c#L568)
+ * @param {string} [colourspace] - output colourspace e.g. `srgb`, `rgb`, `cmyk`, `lab`, `b-w` [...](https://github.com/libvips/libvips/blob/master/libvips/iofuncs/enumtypes.c#L568)
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -71,7 +71,7 @@ function toColourspace (colourspace) {
 
 /**
  * Alternative spelling of `toColourspace`.
- * @param {String} [colorspace] - output colorspace.
+ * @param {string} [colorspace] - output colorspace.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -82,8 +82,8 @@ function toColorspace (colorspace) {
 /**
  * Update a colour attribute of the this.options Object.
  * @private
- * @param {String} key
- * @param {String|Object} value
+ * @param {string} key
+ * @param {string|Object} value
  * @throws {Error} Invalid value
  */
 function _setBackgroundColourOption (key, value) {

lib/input.js

@@ -147,7 +147,7 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
  * Handle incoming Buffer chunk on Writable Stream.
  * @private
  * @param {Buffer} chunk
- * @param {String} encoding - unused
+ * @param {string} encoding - unused
  * @param {Function} callback
  */
 function _write (chunk, encoding, callback) {
@@ -183,7 +183,7 @@ function _flattenBufferIn () {
 /**
  * Are we expecting Stream-based input?
  * @private
- * @returns {Boolean}
+ * @returns {boolean}
  */
 function _isStreamInput () {
   return Array.isArray(this.options.input.buffer);

lib/is.js

@@ -91,8 +91,8 @@ const inArray = function (val, list) {
 /**
  * Create an Error with a message relating to an invalid parameter.
  *
- * @param {String} name - parameter name.
- * @param {String} expected - description of the type/value/range expected.
+ * @param {string} name - parameter name.
+ * @param {string} expected - description of the type/value/range expected.
  * @param {*} actual - the value received.
  * @returns {Error} Containing the formatted message.
  * @private

lib/operation.js

@@ -32,9 +32,9 @@ const is = require('./is');
  *   });
  * readableStream.pipe(pipeline);
  *
- * @param {Number} [angle=auto] angle of rotation.
+ * @param {number} [angle=auto] angle of rotation.
  * @param {Object} [options] - if present, is an Object with optional attributes.
- * @param {String|Object} [options.background="#000000"] parsed by the [color](https://www.npmjs.org/package/color) module to extract values for red, green, blue and alpha.
+ * @param {string|Object} [options.background="#000000"] parsed by the [color](https://www.npmjs.org/package/color) module to extract values for red, green, blue and alpha.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -88,9 +88,9 @@ function flop (flop) {
  * When a `sigma` is provided, performs a slower, more accurate sharpen of the L channel in the LAB colour space.
  * Separate control over the level of sharpening in "flat" and "jagged" areas is available.
  *
- * @param {Number} [sigma] - the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
- * @param {Number} [flat=1.0] - the level of sharpening to apply to "flat" areas.
- * @param {Number} [jagged=2.0] - the level of sharpening to apply to "jagged" areas.
+ * @param {number} [sigma] - the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
+ * @param {number} [flat=1.0] - the level of sharpening to apply to "flat" areas.
+ * @param {number} [jagged=2.0] - the level of sharpening to apply to "jagged" areas.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -129,7 +129,7 @@ function sharpen (sigma, flat, jagged) {
 /**
  * Apply median filter.
  * When used without parameters the default window is 3x3.
- * @param {Number} [size=3] square mask size: size x size
+ * @param {number} [size=3] square mask size: size x size
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -150,7 +150,7 @@ function median (size) {
  * Blur the image.
  * When used without parameters, performs a fast, mild blur of the output image.
  * When a `sigma` is provided, performs a slower, more accurate Gaussian blur.
- * @param {Number} [sigma] a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
+ * @param {number} [sigma] a value between 0.3 and 1000 representing the sigma of the Gaussian mask, where `sigma = 1 + radius / 2`.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -173,7 +173,7 @@ function blur (sigma) {
 /**
  * Merge alpha transparency channel, if any, with a background.
  * @param {Object} [options]
- * @param {String|Object} [options.background={r: 0, g: 0, b: 0}] - background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to black.
+ * @param {string|Object} [options.background={r: 0, g: 0, b: 0}] - background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to black.
  * @returns {Sharp}
  */
 function flatten (options) {
@@ -193,8 +193,8 @@ function flatten (options) {
  *
  * Supply a second argument to use a different output gamma value, otherwise the first value is used in both cases.
  *
- * @param {Number} [gamma=2.2] value between 1.0 and 3.0.
- * @param {Number} [gammaOut] value between 1.0 and 3.0. (optional, defaults to same as `gamma`)
+ * @param {number} [gamma=2.2] value between 1.0 and 3.0.
+ * @param {number} [gammaOut] value between 1.0 and 3.0. (optional, defaults to same as `gamma`)
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -264,11 +264,11 @@ function normalize (normalize) {
  *   });
  *
  * @param {Object} kernel
- * @param {Number} kernel.width - width of the kernel in pixels.
- * @param {Number} kernel.height - width of the kernel in pixels.
- * @param {Array<Number>} kernel.kernel - Array of length `width*height` containing the kernel values.
- * @param {Number} [kernel.scale=sum] - the scale of the kernel in pixels.
- * @param {Number} [kernel.offset=0] - the offset of the kernel in pixels.
+ * @param {number} kernel.width - width of the kernel in pixels.
+ * @param {number} kernel.height - width of the kernel in pixels.
+ * @param {Array<number>} kernel.kernel - Array of length `width*height` containing the kernel values.
+ * @param {number} [kernel.scale=sum] - the scale of the kernel in pixels.
+ * @param {number} [kernel.offset=0] - the offset of the kernel in pixels.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -300,7 +300,7 @@ function convolve (kernel) {
 
 /**
  * Any pixel value greather than or equal to the threshold value will be set to 255, otherwise it will be set to 0.
- * @param {Number} [threshold=128] - a value in the range 0-255 representing the level at which the threshold will be applied.
+ * @param {number} [threshold=128] - a value in the range 0-255 representing the level at which the threshold will be applied.
  * @param {Object} [options]
  * @param {Boolean} [options.greyscale=true] - convert to single channel greyscale.
  * @param {Boolean} [options.grayscale=true] - alternative spelling for greyscale.
@@ -331,13 +331,13 @@ function threshold (threshold, options) {
  * This operation creates an output image where each pixel is the result of
  * the selected bitwise boolean `operation` between the corresponding pixels of the input images.
  *
- * @param {Buffer|String} operand - Buffer containing image data or String containing the path to an image file.
- * @param {String} operator - one of `and`, `or` or `eor` to perform that bitwise operation, like the C logic operators `&`, `|` and `^` respectively.
+ * @param {Buffer|string} operand - Buffer containing image data or string containing the path to an image file.
+ * @param {string} operator - one of `and`, `or` or `eor` to perform that bitwise operation, like the C logic operators `&`, `|` and `^` respectively.
  * @param {Object} [options]
  * @param {Object} [options.raw] - describes operand when using raw pixel data.
- * @param {Number} [options.raw.width]
- * @param {Number} [options.raw.height]
- * @param {Number} [options.raw.channels]
+ * @param {number} [options.raw.width]
+ * @param {number} [options.raw.height]
+ * @param {number} [options.raw.channels]
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -353,8 +353,8 @@ function boolean (operand, operator, options) {
 
 /**
  * Apply the linear formula a * input + b to the image (levels adjustment)
- * @param {Number} [a=1.0] multiplier
- * @param {Number} [b=0.0] offset
+ * @param {number} [a=1.0] multiplier
+ * @param {number} [b=0.0] offset
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -394,7 +394,7 @@ function linear (a, b) {
  *     // With this example input, a sepia filter has been applied
  *   });
  *
- * @param {Array<Array<Number>>} 3x3 Recombination matrix
+ * @param {Array<Array<number>>} inputMatrix - 3x3 Recombination matrix
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -440,9 +440,9 @@ function recomb (inputMatrix) {
  *   });
  *
  * @param {Object} [options]
- * @param {Number} [options.brightness] Brightness multiplier
- * @param {Number} [options.saturation] Saturation multiplier
- * @param {Number} [options.hue] Degrees for hue rotation
+ * @param {number} [options.brightness] Brightness multiplier
+ * @param {number} [options.saturation] Saturation multiplier
+ * @param {number} [options.hue] Degrees for hue rotation
  * @returns {Sharp}
  */
 function modulate (options) {

lib/output.js

@@ -36,7 +36,7 @@ const formats = new Map([
  *   .then(info => { ... })
  *   .catch(err => { ... });
  *
- * @param {String} fileOut - the path to write the image data to.
+ * @param {string} fileOut - the path to write the image data to.
  * @param {Function} [callback] - called on completion with two arguments `(err, info)`.
  * `info` contains the output image `format`, `size` (bytes), `width`, `height`,
  * `channels` and `premultiplied` (indicating if premultiplication was used).
@@ -103,7 +103,7 @@ function toFile (fileOut, callback) {
  *   .catch(err => { ... });
  *
  * @param {Object} [options]
- * @param {Boolean} [options.resolveWithObject] Resolve the Promise with an Object containing `data` and `info` properties instead of resolving only with `data`.
+ * @param {boolean} [options.resolveWithObject] Resolve the Promise with an Object containing `data` and `info` properties instead of resolving only with `data`.
  * @param {Function} [callback]
  * @returns {Promise<Buffer>} - when no callback is provided
  */
@@ -130,7 +130,7 @@ function toBuffer (options, callback) {
  *   .then(info => { ... });
  *
  * @param {Object} [options]
- * @param {Number} [options.orientation] value between 1 and 8, used to update the EXIF `Orientation` tag.
+ * @param {number} [options.orientation] value between 1 and 8, used to update the EXIF `Orientation` tag.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -157,7 +157,7 @@ function withMetadata (options) {
  *   .toFormat('png')
  *   .toBuffer();
  *
- * @param {(String|Object)} format - as a String or an Object with an 'id' attribute
+ * @param {(string|Object)} format - as a string or an Object with an 'id' attribute
  * @param {Object} options - output options
  * @returns {Sharp}
  * @throws {Error} unsupported format or options
@@ -183,18 +183,18 @@ function toFormat (format, options) {
  *   .toBuffer();
  *
  * @param {Object} [options] - output options
- * @param {Number} [options.quality=80] - quality, integer 1-100
- * @param {Boolean} [options.progressive=false] - use progressive (interlace) scan
- * @param {String} [options.chromaSubsampling='4:2:0'] - for quality < 90, set to '4:4:4' to prevent chroma subsampling otherwise defaults to '4:2:0' (use chroma subsampling); for quality >= 90 chroma is never subsampled
- * @param {Boolean} [options.trellisQuantisation=false] - apply trellis quantisation, requires libvips compiled with support for mozjpeg
- * @param {Boolean} [options.overshootDeringing=false] - apply overshoot deringing, requires libvips compiled with support for mozjpeg
- * @param {Boolean} [options.optimiseScans=false] - optimise progressive scans, forces progressive, requires libvips compiled with support for mozjpeg
- * @param {Boolean} [options.optimizeScans=false] - alternative spelling of optimiseScans
- * @param {Boolean} [options.optimiseCoding=true] - optimise Huffman coding tables
- * @param {Boolean} [options.optimizeCoding=true] - alternative spelling of optimiseCoding
- * @param {Number} [options.quantisationTable=0] - quantization table to use, integer 0-8, requires libvips compiled with support for mozjpeg
- * @param {Number} [options.quantizationTable=0] - alternative spelling of quantisationTable
- * @param {Boolean} [options.force=true] - force JPEG output, otherwise attempt to use input format
+ * @param {number} [options.quality=80] - quality, integer 1-100
+ * @param {boolean} [options.progressive=false] - use progressive (interlace) scan
+ * @param {string} [options.chromaSubsampling='4:2:0'] - for quality < 90, set to '4:4:4' to prevent chroma subsampling otherwise defaults to '4:2:0' (use chroma subsampling); for quality >= 90 chroma is never subsampled
+ * @param {boolean} [options.trellisQuantisation=false] - apply trellis quantisation, requires libvips compiled with support for mozjpeg
+ * @param {boolean} [options.overshootDeringing=false] - apply overshoot deringing, requires libvips compiled with support for mozjpeg
+ * @param {boolean} [options.optimiseScans=false] - optimise progressive scans, forces progressive, requires libvips compiled with support for mozjpeg
+ * @param {boolean} [options.optimizeScans=false] - alternative spelling of optimiseScans
+ * @param {boolean} [options.optimiseCoding=true] - optimise Huffman coding tables
+ * @param {boolean} [options.optimizeCoding=true] - alternative spelling of optimiseCoding
+ * @param {number} [options.quantisationTable=0] - quantization table to use, integer 0-8, requires libvips compiled with support for mozjpeg
+ * @param {number} [options.quantizationTable=0] - alternative spelling of quantisationTable
+ * @param {boolean} [options.force=true] - force JPEG output, otherwise attempt to use input format
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -260,15 +260,15 @@ function jpeg (options) {
  *   .toBuffer();
  *
  * @param {Object} [options]
- * @param {Boolean} [options.progressive=false] - use progressive (interlace) scan
- * @param {Number} [options.compressionLevel=9] - zlib compression level, 0-9
- * @param {Boolean} [options.adaptiveFiltering=false] - use adaptive row filtering
- * @param {Boolean} [options.palette=false] - quantise to a palette-based image with alpha transparency support, requires libvips compiled with support for libimagequant
- * @param {Number} [options.quality=100] - use the lowest number of colours needed to achieve given quality, requires libvips compiled with support for libimagequant
- * @param {Number} [options.colours=256] - maximum number of palette entries, requires libvips compiled with support for libimagequant
- * @param {Number} [options.colors=256] - alternative spelling of `options.colours`, requires libvips compiled with support for libimagequant
- * @param {Number} [options.dither=1.0] - level of Floyd-Steinberg error diffusion, requires libvips compiled with support for libimagequant
- * @param {Boolean} [options.force=true] - force PNG output, otherwise attempt to use input format
+ * @param {boolean} [options.progressive=false] - use progressive (interlace) scan
+ * @param {number} [options.compressionLevel=9] - zlib compression level, 0-9
+ * @param {boolean} [options.adaptiveFiltering=false] - use adaptive row filtering
+ * @param {boolean} [options.palette=false] - quantise to a palette-based image with alpha transparency support, requires libvips compiled with support for libimagequant
+ * @param {number} [options.quality=100] - use the lowest number of colours needed to achieve given quality, requires libvips compiled with support for libimagequant
+ * @param {number} [options.colours=256] - maximum number of palette entries, requires libvips compiled with support for libimagequant
+ * @param {number} [options.colors=256] - alternative spelling of `options.colours`, requires libvips compiled with support for libimagequant
+ * @param {number} [options.dither=1.0] - level of Floyd-Steinberg error diffusion, requires libvips compiled with support for libimagequant
+ * @param {boolean} [options.force=true] - force PNG output, otherwise attempt to use input format
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -328,13 +328,13 @@ function png (options) {
  *   .toBuffer();
  *
  * @param {Object} [options] - output options
- * @param {Number} [options.quality=80] - quality, integer 1-100
- * @param {Number} [options.alphaQuality=100] - quality of alpha layer, integer 0-100
- * @param {Boolean} [options.lossless=false] - use lossless compression mode
- * @param {Boolean} [options.nearLossless=false] - use near_lossless compression mode
- * @param {Boolean} [options.smartSubsample=false] - use high quality chroma subsampling
- * @param {Number} [options.reductionEffort=4] - level of CPU effort to reduce file size, integer 0-6
- * @param {Boolean} [options.force=true] - force WebP output, otherwise attempt to use input format
+ * @param {number} [options.quality=80] - quality, integer 1-100
+ * @param {number} [options.alphaQuality=100] - quality of alpha layer, integer 0-100
+ * @param {boolean} [options.lossless=false] - use lossless compression mode
+ * @param {boolean} [options.nearLossless=false] - use near_lossless compression mode
+ * @param {boolean} [options.smartSubsample=false] - use high quality chroma subsampling
+ * @param {number} [options.reductionEffort=4] - level of CPU effort to reduce file size, integer 0-6
+ * @param {boolean} [options.force=true] - force WebP output, otherwise attempt to use input format
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -386,17 +386,17 @@ function webp (options) {
  *   .then(info => { ... });
  *
  * @param {Object} [options] - output options
- * @param {Number} [options.quality=80] - quality, integer 1-100
- * @param {Boolean} [options.force=true] - force TIFF output, otherwise attempt to use input format
- * @param {Boolean} [options.compression='jpeg'] - compression options: lzw, deflate, jpeg, ccittfax4
- * @param {Boolean} [options.predictor='horizontal'] - compression predictor options: none, horizontal, float
- * @param {Boolean} [options.pyramid=false] - write an image pyramid
- * @param {Boolean} [options.tile=false] - write a tiled tiff
- * @param {Boolean} [options.tileWidth=256] - horizontal tile size
- * @param {Boolean} [options.tileHeight=256] - vertical tile size
- * @param {Number} [options.xres=1.0] - horizontal resolution in pixels/mm
- * @param {Number} [options.yres=1.0] - vertical resolution in pixels/mm
- * @param {Boolean} [options.squash=false] - squash 8-bit images down to 1 bit
+ * @param {number} [options.quality=80] - quality, integer 1-100
+ * @param {boolean} [options.force=true] - force TIFF output, otherwise attempt to use input format
+ * @param {boolean} [options.compression='jpeg'] - compression options: lzw, deflate, jpeg, ccittfax4
+ * @param {boolean} [options.predictor='horizontal'] - compression predictor options: none, horizontal, float
+ * @param {boolean} [options.pyramid=false] - write an image pyramid
+ * @param {boolean} [options.tile=false] - write a tiled tiff
+ * @param {boolean} [options.tileWidth=256] - horizontal tile size
+ * @param {boolean} [options.tileHeight=256] - vertical tile size
+ * @param {number} [options.xres=1.0] - horizontal resolution in pixels/mm
+ * @param {number} [options.yres=1.0] - vertical resolution in pixels/mm
+ * @param {boolean} [options.squash=false] - squash 8-bit images down to 1 bit
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -482,9 +482,9 @@ function tiff (options) {
  * @since 0.23.0
  *
  * @param {Object} [options] - output options
- * @param {Number} [options.quality=80] - quality, integer 1-100
- * @param {Boolean} [options.compression='hevc'] - compression format: hevc, avc, jpeg, av1
- * @param {Boolean} [options.lossless=false] - use lossless compression
+ * @param {number} [options.quality=80] - quality, integer 1-100
+ * @param {boolean} [options.compression='hevc'] - compression format: hevc, avc, jpeg, av1
+ * @param {boolean} [options.lossless=false] - use lossless compression
  * @returns {Sharp}
  * @throws {Error} Invalid options
  */
@@ -563,14 +563,14 @@ function raw () {
  *   });
  *
  * @param {Object} [options]
- * @param {Number} [options.size=256] tile size in pixels, a value between 1 and 8192.
- * @param {Number} [options.overlap=0] tile overlap in pixels, a value between 0 and 8192.
- * @param {Number} [options.angle=0] tile angle of rotation, must be a multiple of 90.
- * @param {String|Object} [options.background={r: 255, g: 255, b: 255, alpha: 1}] - background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to white without transparency.
- * @param {String} [options.depth] how deep to make the pyramid, possible values are `onepixel`, `onetile` or `one`, default based on layout.
- * @param {Number} [options.skipBlanks=-1] threshold to skip tile generation, a value 0 - 255 for 8-bit images or 0 - 65535 for 16-bit images
- * @param {String} [options.container='fs'] tile container, with value `fs` (filesystem) or `zip` (compressed file).
- * @param {String} [options.layout='dz'] filesystem layout, possible values are `dz`, `iiif`, `zoomify` or `google`.
+ * @param {number} [options.size=256] tile size in pixels, a value between 1 and 8192.
+ * @param {number} [options.overlap=0] tile overlap in pixels, a value between 0 and 8192.
+ * @param {number} [options.angle=0] tile angle of rotation, must be a multiple of 90.
+ * @param {string|Object} [options.background={r: 255, g: 255, b: 255, alpha: 1}] - background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to white without transparency.
+ * @param {string} [options.depth] how deep to make the pyramid, possible values are `onepixel`, `onetile` or `one`, default based on layout.
+ * @param {number} [options.skipBlanks=-1] threshold to skip tile generation, a value 0 - 255 for 8-bit images or 0 - 65535 for 16-bit images
+ * @param {string} [options.container='fs'] tile container, with value `fs` (filesystem) or `zip` (compressed file).
+ * @param {string} [options.layout='dz'] filesystem layout, possible values are `dz`, `iiif`, `zoomify` or `google`.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -653,9 +653,9 @@ function tile (options) {
  * Update the output format unless options.force is false,
  * in which case revert to input format.
  * @private
- * @param {String} formatOut
+ * @param {string} formatOut
  * @param {Object} [options]
- * @param {Boolean} [options.force=true] - force output format, otherwise attempt to use input format
+ * @param {boolean} [options.force=true] - force output format, otherwise attempt to use input format
  * @returns {Sharp}
  */
 function _updateFormatOut (formatOut, options) {
@@ -666,10 +666,10 @@ function _updateFormatOut (formatOut, options) {
 }
 
 /**
- * Update a Boolean attribute of the this.options Object.
+ * Update a boolean attribute of the this.options Object.
  * @private
- * @param {String} key
- * @param {Boolean} val
+ * @param {string} key
+ * @param {boolean} val
  * @throws {Error} Invalid key
  */
 function _setBooleanOption (key, val) {

lib/resize.js

@@ -190,8 +190,8 @@ function isRotationExpected (options) {
  *     .toBuffer()
  *   );
  *
- * @param {Number} [width] - pixels wide the resultant image should be. Use `null` or `undefined` to auto-scale the width to match the height.
- * @param {Number} [height] - pixels high the resultant image should be. Use `null` or `undefined` to auto-scale the height to match the width.
+ * @param {number} [width] - pixels wide the resultant image should be. Use `null` or `undefined` to auto-scale the width to match the height.
+ * @param {number} [height] - pixels high the resultant image should be. Use `null` or `undefined` to auto-scale the height to match the width.
  * @param {Object} [options]
  * @param {String} [options.width] - alternative means of specifying `width`. If both are present this take priority.
  * @param {String} [options.height] - alternative means of specifying `height`. If both are present this take priority.
@@ -302,11 +302,11 @@ function resize (width, height, options) {
  *   })
  *   ...
  *
- * @param {(Number|Object)} extend - single pixel count to add to all edges or an Object with per-edge counts
- * @param {Number} [extend.top]
- * @param {Number} [extend.left]
- * @param {Number} [extend.bottom]
- * @param {Number} [extend.right]
+ * @param {(number|Object)} extend - single pixel count to add to all edges or an Object with per-edge counts
+ * @param {number} [extend.top]
+ * @param {number} [extend.left]
+ * @param {number} [extend.bottom]
+ * @param {number} [extend.right]
  * @param {String|Object} [extend.background={r: 0, g: 0, b: 0, alpha: 1}] - background colour, parsed by the [color](https://www.npmjs.org/package/color) module, defaults to black without transparency.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
@@ -358,10 +358,10 @@ function extend (extend) {
  *   });
  *
  * @param {Object} options - describes the region to extract using integral pixel values
- * @param {Number} options.left - zero-indexed offset from left edge
- * @param {Number} options.top - zero-indexed offset from top edge
- * @param {Number} options.width - width of region to extract
- * @param {Number} options.height - height of region to extract
+ * @param {number} options.left - zero-indexed offset from left edge
+ * @param {number} options.top - zero-indexed offset from top edge
+ * @param {number} options.width - width of region to extract
+ * @param {number} options.height - height of region to extract
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */
@@ -388,7 +388,7 @@ function extract (options) {
  *
  * The `info` response Object will contain `trimOffsetLeft` and `trimOffsetTop` properties.
  *
- * @param {Number} [threshold=10] the allowed difference from the top-left pixel, a number greater than zero.
+ * @param {number} [threshold=10] the allowed difference from the top-left pixel, a number greater than zero.
  * @returns {Sharp}
  * @throws {Error} Invalid parameters
  */

lib/utility.js

@@ -39,10 +39,10 @@ try {
  * sharp.cache( { files: 0 } );
  * sharp.cache(false);
  *
- * @param {Object|Boolean} [options=true] - Object with the following attributes, or Boolean where true uses default cache settings and false removes all caching
- * @param {Number} [options.memory=50] - is the maximum memory in MB to use for this cache
- * @param {Number} [options.files=20] - is the maximum number of files to hold open
- * @param {Number} [options.items=100] - is the maximum number of operations to cache
+ * @param {Object|boolean} [options=true] - Object with the following attributes, or boolean where true uses default cache settings and false removes all caching
+ * @param {number} [options.memory=50] - is the maximum memory in MB to use for this cache
+ * @param {number} [options.files=20] - is the maximum number of files to hold open
+ * @param {number} [options.items=100] - is the maximum number of operations to cache
  * @returns {Object}
  */
 function cache (options) {
@@ -77,8 +77,8 @@ cache(true);
  * sharp.concurrency(2); // 2
  * sharp.concurrency(0); // 4
  *
- * @param {Number} [concurrency]
- * @returns {Number} concurrency
+ * @param {number} [concurrency]
+ * @returns {number} concurrency
  */
 function concurrency (concurrency) {
   return sharp.concurrency(is.integer(concurrency) ? concurrency : null);
@@ -124,8 +124,8 @@ function counters () {
  * const simd = sharp.simd(false);
  * // prevent libvips from using liborc at runtime
  *
- * @param {Boolean} [simd=true]
- * @returns {Boolean}
+ * @param {boolean} [simd=true]
+ * @returns {boolean}
  */
 function simd (simd) {
   return sharp.simd(is.bool(simd) ? simd : null);