22 lines
669 B
Markdown
22 lines
669 B
Markdown
### Clean Json objects
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Use `Object.keys()` method to iter through given json object and deleting keys that are not `include`d in given array.
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also if you give it a special key(`childIndicator`) it will search deeply inside it to apply function to inner objects too.
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```js
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const cleanObj = (obj, keys = [], childIndicator) => {
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Object.keys(obj).forEach(key => {
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if (key === childIndicator) {
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cleanObj(obj[key], keys, childIndicator)
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} else if (!keys.includes(key)) {
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delete obj[key]
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}
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})
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}
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/*
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testObj = {a: 1, b: 2, children: {a: 1, b: 2}}
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cleanObj(testObj, ["a"],"children")
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console.log(testObj)// { a: 1, children : { a: 1}}
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*/
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```
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