45 lines
981 B
JavaScript
45 lines
981 B
JavaScript
export const ctoF = (c) => (c * 9) / 5 + 32; //celsius to fahrenheit
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export const mpsToMph = (mps) => (mps * 2.236936).toFixed(2); //meters per second - miles per hour
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export const kmToMiles = (km) => (km / 1.609).toFixed(1); //kilometers to miles
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export const timeTo12HourFormat = (time) => {
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//23:43 to 11:43
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const [hours, minutes] = time.split(":");
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return `${hours % 12}:${minutes}`;
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};
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export const degToCompass = (num) => {
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//degree to compass direction
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var val = Math.floor(num / 22.5 + 0.5);
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var arr = [
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"N",
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"NNE",
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"NE",
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"ENE",
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"E",
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"ESE",
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"SE",
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"S/SE",
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"S",
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"SSW",
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"SW",
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"WSW",
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"W",
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"WNW",
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"NW",
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"NNW",
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];
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return arr[val % 16];
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};
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// unixToLocalTime (23:31)
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export const unixToLocalTime = (unixSeconds, timezone) => {
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let time = new Date((unixSeconds + timezone) * 1000)
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.toISOString()
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.match(/(\d{2}:\d{2})/)[0];
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return time.startsWith("0") ? time.substring(1) : time;
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};
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