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38 lines
1.3 KiB
JavaScript
38 lines
1.3 KiB
JavaScript
"use strict";
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// FMG utils related to units
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// conver temperature from °C to other scales
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const temperatureConversionMap = {
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"°C": temp => rn(temp) + "°C",
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"°F": temp => rn((temp * 9) / 5 + 32) + "°F",
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K: temp => rn(temp + 273.15) + "K",
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"°R": temp => rn(((temp + 273.15) * 9) / 5) + "°R",
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"°De": temp => rn(((100 - temp) * 3) / 2) + "°De",
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"°N": temp => rn((temp * 33) / 100) + "°N",
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"°Ré": temp => rn((temp * 4) / 5) + "°Ré",
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"°Rø": temp => rn((temp * 21) / 40 + 7.5) + "°Rø"
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};
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function convertTemperature(temp) {
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const scale = temperatureScale.value || "°C";
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return temperatureConversionMap[scale](temp);
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}
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// corvent number to short string with SI postfix
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function si(n) {
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if (n >= 1e9) return rn(n / 1e9, 1) + "B";
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if (n >= 1e8) return rn(n / 1e6) + "M";
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if (n >= 1e6) return rn(n / 1e6, 1) + "M";
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if (n >= 1e4) return rn(n / 1e3) + "K";
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if (n >= 1e3) return rn(n / 1e3, 1) + "K";
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return rn(n);
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}
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// getInteger number from user input data
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function getInteger(value) {
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const metric = value.slice(-1);
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if (metric === "K") return parseInt(value.slice(0, -1) * 1e3);
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if (metric === "M") return parseInt(value.slice(0, -1) * 1e6);
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if (metric === "B") return parseInt(value.slice(0, -1) * 1e9);
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return parseInt(value);
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}
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