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2d441493a4
PR-URL: https://github.com/nodejs/io.js/pull/2286 Reviewed-By: Roman Reiss <me@silverwind.io>
37 lines
1.0 KiB
JavaScript
37 lines
1.0 KiB
JavaScript
'use strict';
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var toArray = require('./to-array')
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, isDate = require('../date/is-date')
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, isRegExp = require('../reg-exp/is-reg-exp')
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, isArray = Array.isArray, stringify = JSON.stringify
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, keyValueToString = function (value, key) { return stringify(key) + ':' + exports(value); };
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var sparseMap = function (arr) {
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var i, l = arr.length, result = new Array(l);
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for (i = 0; i < l; ++i) {
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if (!arr.hasOwnProperty(i)) continue;
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result[i] = exports(arr[i]);
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}
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return result;
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};
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module.exports = exports = function (obj) {
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if (obj == null) return String(obj);
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switch (typeof obj) {
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case 'string':
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return stringify(obj);
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case 'number':
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case 'boolean':
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case 'function':
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return String(obj);
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case 'object':
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if (isArray(obj)) return '[' + sparseMap(obj) + ']';
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if (isRegExp(obj)) return String(obj);
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if (isDate(obj)) return 'new Date(' + obj.valueOf() + ')';
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return '{' + toArray(obj, keyValueToString) + '}';
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default:
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throw new TypeError("Serialization of " + String(obj) + "is unsupported");
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}
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};
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