28 lines
1019 B
JavaScript
28 lines
1019 B
JavaScript
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'use strict';
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var uncurryThis = require('../internals/function-uncurry-this');
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var toIndexedObject = require('../internals/to-indexed-object');
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var toString = require('../internals/to-string');
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var lengthOfArrayLike = require('../internals/length-of-array-like');
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var $TypeError = TypeError;
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var push = uncurryThis([].push);
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var join = uncurryThis([].join);
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// `String.cooked` method
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// https://tc39.es/proposal-string-cooked/
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module.exports = function cooked(template /* , ...substitutions */) {
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var cookedTemplate = toIndexedObject(template);
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var literalSegments = lengthOfArrayLike(cookedTemplate);
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if (!literalSegments) return '';
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var argumentsLength = arguments.length;
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var elements = [];
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var i = 0;
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while (true) {
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var nextVal = cookedTemplate[i++];
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if (nextVal === undefined) throw $TypeError('Incorrect template');
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push(elements, toString(nextVal));
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if (i === literalSegments) return join(elements, '');
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if (i < argumentsLength) push(elements, toString(arguments[i]));
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}
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};
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