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30 lines
1.0 KiB
JavaScript
30 lines
1.0 KiB
JavaScript
11 months ago
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import deepClone from "./deepClone";
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// JS对象深度合并
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function deepMerge(target = {}, source = {}) {
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target = deepClone(target);
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if (typeof target !== 'object' || target === null || typeof source !== 'object' || source === null) return target;
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const merged = Array.isArray(target) ? target.slice() : Object.assign({}, target);
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for (const prop in source) {
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if (!source.hasOwnProperty(prop)) continue;
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const sourceValue = source[prop];
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const targetValue = merged[prop];
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if (sourceValue instanceof Date) {
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merged[prop] = new Date(sourceValue);
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} else if (sourceValue instanceof RegExp) {
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merged[prop] = new RegExp(sourceValue);
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} else if (sourceValue instanceof Map) {
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merged[prop] = new Map(sourceValue);
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} else if (sourceValue instanceof Set) {
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merged[prop] = new Set(sourceValue);
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} else if (typeof sourceValue === 'object' && sourceValue !== null) {
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merged[prop] = deepMerge(targetValue, sourceValue);
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} else {
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merged[prop] = sourceValue;
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}
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}
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return merged;
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}
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export default deepMerge;
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