35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = assign;
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/**
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* Source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
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*
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* Similar to Object.assign(), but it doesn't execute getters. This allows us to have
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* lazy properties on an object and still be able to merge them together
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*
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*/
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function assign(target, ...sources) {
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sources.forEach(source => {
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let descriptors = Object.keys(source).reduce((acc, key) => {
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const propertyDescriptor = Object.getOwnPropertyDescriptor(source, key);
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if (propertyDescriptor !== undefined) {
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acc[key] = propertyDescriptor;
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}
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return acc;
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}, {});
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// by default, Object.assign copies enumerable Symbols too
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Object.getOwnPropertySymbols(source).forEach(sym => {
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let descriptor = Object.getOwnPropertyDescriptor(source, sym);
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if (descriptor && descriptor.enumerable) {
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descriptors[sym.toString()] = descriptor;
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}
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});
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Object.defineProperties(target, descriptors);
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});
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return target;
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}
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//# sourceMappingURL=assign.ts.map
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