32 lines
664 B
TypeScript
32 lines
664 B
TypeScript
import { isDef, isObj } from '.';
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import { ObjectIndex } from './types';
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const { hasOwnProperty } = Object.prototype;
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function assignKey(to: ObjectIndex, from: ObjectIndex, key: string) {
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const val = from[key];
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if (!isDef(val)) {
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return;
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}
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if (
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!hasOwnProperty.call(to, key) ||
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!isObj(val) ||
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typeof val === 'function'
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) {
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to[key] = val;
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} else {
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// eslint-disable-next-line no-use-before-define
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to[key] = deepAssign(Object(to[key]), from[key]);
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}
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}
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export function deepAssign(to: ObjectIndex, from: ObjectIndex): ObjectIndex {
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Object.keys(from).forEach(key => {
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assignKey(to, from, key);
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});
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return to;
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}
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