#7 String.prototype.replace() | JavaScript | Frontend
```js
console.clear()
const str = 'AbCdE'
const regex = /[A-Z]/g
const m = str.replace(regex, '')
console.log(m)
const regex2 = /[a-z]/g
const m2 = str.replace(regex2, '')
console.log(m2)
```
codepen
https://codepen.io/frontend-tech/pen/...
MDN
https://developer.mozilla.org/en-US/d...
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