forked from daren.hsu/line_push
darenhsu
36 lines
655 B
JavaScript
36 lines
655 B
JavaScript
function isObject (val) {
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return val !== null && typeof val === 'object' && !Array.isArray(val)
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}
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function defu (_obj, _defaults) {
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if (!isObject(_obj)) {
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return defu({}, _defaults)
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}
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if (!isObject(_defaults)) {
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return defu(_obj, {})
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}
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var obj = Object.assign({}, _defaults)
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Object.keys(_obj).forEach(function (key) {
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if (key === '__proto__' || key === 'constructor') {
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return
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}
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var val = _obj[key]
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if (val === null) {
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return
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}
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if (isObject(val) && isObject(obj[key])) {
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obj[key] = defu(val, obj[key])
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} else {
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obj[key] = val
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}
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})
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return obj
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}
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module.exports = defu
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