Marc Mintel
5397309103
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31 lines
727 B
Plaintext
31 lines
727 B
Plaintext
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const { RESERVED_IDENTIFIER, SAFE_IDENTIFIER } = require("./propertyName");
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/**
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* @param {ArrayLike<string>} properties properties
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* @param {number} start start index
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* @returns {string} chain of property accesses
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*/
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const propertyAccess = (properties, start = 0) => {
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let str = "";
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for (let i = start; i < properties.length; i++) {
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const p = properties[i];
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if (`${Number(p)}` === p) {
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str += `[${p}]`;
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} else if (SAFE_IDENTIFIER.test(p) && !RESERVED_IDENTIFIER.has(p)) {
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str += `.${p}`;
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} else {
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str += `[${JSON.stringify(p)}]`;
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}
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}
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return str;
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};
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module.exports = propertyAccess;
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