mirror of https://github.com/denoland/deno.git
32 lines
898 B
TypeScript
32 lines
898 B
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
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export function deepAssign(
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target: Record<string, unknown>,
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...sources: object[]
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): object | undefined {
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for (let i = 0; i < sources.length; i++) {
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const source = sources[i];
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if (!source || typeof source !== `object`) {
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return;
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}
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Object.entries(source).forEach(([key, value]: [string, unknown]): void => {
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if (value instanceof Date) {
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target[key] = new Date(value);
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return;
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}
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if (!value || typeof value !== `object`) {
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target[key] = value;
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return;
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}
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if (Array.isArray(value)) {
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target[key] = [];
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}
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// value is an Object
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if (typeof target[key] !== `object` || !target[key]) {
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target[key] = {};
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}
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deepAssign(target[key] as Record<string, unknown>, value!);
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});
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}
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return target;
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}
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