54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
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/**
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* @generated SignedSource<<e8e5ba644b047d0654ca54a100d2f0f3>>
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*
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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* !! This file is a check-in of a static_upstream project! !!
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* !! !!
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* !! You should not modify this file directly. Instead: !!
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* !! 1) Use `fjs use-upstream` to temporarily replace this with !!
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* !! the latest version from upstream. !!
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* !! 2) Make your changes, test them, etc. !!
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* !! 3) Use `fjs push-upstream` to copy your changes back to !!
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* !! static_upstream. !!
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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*
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* @providesModule copyProperties
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*/
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/**
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* Copy properties from one or more objects (up to 5) into the first object.
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* This is a shallow copy. It mutates the first object and also returns it.
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*
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* NOTE: `arguments` has a very significant performance penalty, which is why
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* we don't support unlimited arguments.
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*/
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function copyProperties(obj, a, b, c, d, e, f) {
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obj = obj || {};
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if (__DEV__) {
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if (f) {
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throw new Error('Too many arguments passed to copyProperties');
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}
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}
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var args = [a, b, c, d, e];
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var ii = 0, v;
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while (args[ii]) {
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v = args[ii++];
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for (var k in v) {
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obj[k] = v[k];
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}
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// IE ignores toString in object iteration.. See:
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// webreflection.blogspot.com/2007/07/quick-fix-internet-explorer-and.html
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if (v.hasOwnProperty && v.hasOwnProperty('toString') &&
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(typeof v.toString != 'undefined') && (obj.toString !== v.toString)) {
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obj.toString = v.toString;
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}
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}
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return obj;
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}
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module.exports = copyProperties;
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