31 lines
753 B
JavaScript
31 lines
753 B
JavaScript
/*!
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* define-property <https://github.com/jonschlinkert/define-property>
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*
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* Copyright (c) 2015, Jon Schlinkert.
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* Licensed under the MIT License.
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*/
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'use strict';
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var isDescriptor = require('is-descriptor');
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module.exports = function defineProperty(obj, prop, val) {
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if (typeof obj !== 'object' && typeof obj !== 'function') {
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throw new TypeError('expected an object or function.');
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}
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if (typeof prop !== 'string') {
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throw new TypeError('expected `prop` to be a string.');
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}
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if (isDescriptor(val) && ('set' in val || 'get' in val)) {
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return Object.defineProperty(obj, prop, val);
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}
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return Object.defineProperty(obj, prop, {
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configurable: true,
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enumerable: false,
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writable: true,
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value: val
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});
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};
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