40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
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'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = extractValueFromTemplateLiteral;
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/**
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* Returns the string value of a template literal object.
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* Tries to build it as best as it can based on the passed
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* prop. For instance `This is a ${prop}` will return 'This is a {prop}'.
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*
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* If the template literal builds to undefined (`${undefined}`), then
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* this should return "undefined".
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*/
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function extractValueFromTemplateLiteral(value) {
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var quasis = value.quasis,
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expressions = value.expressions;
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var partitions = quasis.concat(expressions);
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return partitions.sort(function (a, b) {
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return a.start - b.start;
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}).reduce(function (raw, part) {
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var type = part.type;
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if (type === 'TemplateElement') {
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return raw + part.value.raw;
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}
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if (type === 'Identifier') {
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return part.name === 'undefined' ? '' + raw + part.name : raw + '{' + part.name + '}';
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}
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if (type.indexOf('Expression') > -1) {
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return raw + '{' + type + '}';
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}
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return raw;
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}, '');
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}
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