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Adding a best practice #1

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11 changes: 11 additions & 0 deletions README.md
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Expand Up @@ -3,3 +3,14 @@
1. Use const always when you do not want to change the type of a variable.
* https://mathiasbynens.be/notes/es6-const
2. To export class use, export default ClassName.
3. To extract out a key from an object:
```javascript
const obj = {
keyName1: keyValue1,
keyName2: keyValue2
};

// It will declare a constant variable keyName1 having value of keyValue1
const { keyName1 } = obj;
console.log(keyName1); // keyValue1
```