37 lines
821 B
Markdown
37 lines
821 B
Markdown
---
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title: Bind all object methods
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tags: object,function
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cover: laptop-with-code
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firstSeen: 2018-01-26T14:14:53+02:00
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lastUpdated: 2020-11-03T22:11:18+02:00
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---
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Binds methods of an object to the object itself, overwriting the existing method.
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- Use `Array.prototype.forEach()` to iterate over the given `fns`.
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- Return a function for each one, using `Function.prototype.apply()` to apply the given context (`obj`) to `fn`.
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```js
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const bindAll = (obj, ...fns) =>
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fns.forEach(
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fn => (
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(f = obj[fn]),
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(obj[fn] = function() {
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return f.apply(obj);
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})
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)
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);
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```
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```js
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var view = {
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label: 'docs',
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click: function() {
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console.log('clicked ' + this.label);
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}
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};
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bindAll(view, 'click');
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document.body.addEventListener('click', view.click);
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// Log 'clicked docs' when clicked.
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```
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