14 lines
470 B
Markdown
14 lines
470 B
Markdown
### forOwn
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Iterates over all own properties of an object, running a callback for each one.
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Use `Object.keys(obj)` to get all the properties of the object, `Array.forEach()` to run the provided function for each key-value pair. The callback receives three arguments - the value, the key and the object.
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```js
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const forOwn = (obj, fn) => Object.keys(obj).forEach(key => fn(obj[key],key,obj));
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```
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```js
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forOwn({foo: 'bar', a: 1}, v => console.log(v)); // 'bar', 1
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```
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