24 lines
508 B
JavaScript
Executable File
24 lines
508 B
JavaScript
Executable File
const merge = function self (...objects) {
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let [ left, right ] = objects
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right = { ...right } // Prevent overwriting source
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for(const key in right) {
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const source = right[key],
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target = left[key]
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if(target && source instanceof Object)
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right[key] = self(target, source)
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}
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const output = Object.assign(left, right)
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if(objects.length > 2) {
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return self(output, ...objects.slice(2))
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} else {
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objects[0] = output
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return output
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}
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}
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module.exports = merge |