32 lines
801 B
JavaScript
32 lines
801 B
JavaScript
/**
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* https://tc39.es/ecma402/#sec-getstringorbooleanoption
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* @param opts
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* @param prop
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* @param values
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* @param trueValue
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* @param falsyValue
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* @param fallback
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*/
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import { ToString } from './262';
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export function GetStringOrBooleanOption(opts, prop, values, trueValue, falsyValue, fallback) {
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var value = opts[prop];
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if (value === undefined) {
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return fallback;
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}
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if (value === true) {
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return trueValue;
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}
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var valueBoolean = Boolean(value);
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if (valueBoolean === false) {
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return falsyValue;
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}
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value = ToString(value);
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if (value === 'true' || value === 'false') {
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return fallback;
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}
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if ((values || []).indexOf(value) === -1) {
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throw new RangeError("Invalid value ".concat(value));
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}
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return value;
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}
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