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node_modules/es5-ext/object/copy-deep.js
| 35 lines
| 934 B
| application/javascript
| JavascriptLexer
|
| r789 | "use strict"; | |||
| var forEach = require("./for-each") | ||||
| , isPlainObject = require("./is-plain-object") | ||||
| , ensureValue = require("./valid-value") | ||||
| , isArray = Array.isArray; | ||||
| var copyValue = function (value, ancestors, ancestorsCopy) { | ||||
| var mode; | ||||
| if (isPlainObject(value)) mode = "object"; | ||||
| else if (isArray(value)) mode = "array"; | ||||
| if (!mode) return value; | ||||
| var copy = ancestorsCopy[ancestors.indexOf(value)]; | ||||
| if (copy) return copy; | ||||
| copy = mode === "object" ? {} : []; | ||||
| ancestors.push(value); | ||||
| ancestorsCopy.push(copy); | ||||
| if (mode === "object") { | ||||
| forEach(value, function (item, key) { | ||||
| copy[key] = copyValue(item, ancestors, ancestorsCopy); | ||||
| }); | ||||
| } else { | ||||
| value.forEach(function (item, index) { | ||||
| copy[index] = copyValue(item, ancestors, ancestorsCopy); | ||||
| }); | ||||
| } | ||||
| ancestors.pop(); | ||||
| ancestorsCopy.pop(); | ||||
| return copy; | ||||
| }; | ||||
| module.exports = function (source) { return copyValue(ensureValue(source), [], []); }; | ||||