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20 lines
521 B
JavaScript
20 lines
521 B
JavaScript
"use strict";
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const syncpipe = require("syncpipe");
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const timezoneNames = require("./data/timezone-names");
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let inverseMapping = syncpipe(timezoneNames, [
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_ => _.map((name, i) => [ name, i ]),
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_ => new Map(_)
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]);
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module.exports = function lookupTimezoneName(name) {
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if (inverseMapping.has(name)) {
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return inverseMapping.get(name);
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} else {
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// FIXME: Error type, clearer instructions for end users since this may also happen when our timezone list is outdated
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throw new Error(`Unknown timezone name`);
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}
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};
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