34 lines
833 B
TypeScript
34 lines
833 B
TypeScript
/**
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* Simple object check.
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* @param item
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* @returns {boolean}
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*/
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export function isObject(item: unknown): boolean {
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return Boolean(item && typeof item === 'object' && !Array.isArray(item))
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}
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/**
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* Deep merge two objects.
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* @param target
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* @param ...sources
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*/
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export default function deepMerge<T extends object, R extends object>(target: T, source: R): T {
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const output = { ...target }
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if (isObject(target) && isObject(source)) {
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Object.keys(source).forEach((key) => {
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if (isObject(source[key])) {
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// @ts-expect-error
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if (!(key in target)) {
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Object.assign(output, { [key]: source[key] })
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} else {
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output[key] = deepMerge(target[key], source[key])
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}
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} else {
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Object.assign(output, { [key]: source[key] })
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}
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})
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}
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return output
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}
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