0, the second element is
1, third element is
3 and last element index is arr.length-1 etc.
Consider, we have an array with 3 elements like this.
const arr = ['lol','ball','doll']
To get the first element of an array, we can use the square brackets syntax by passing the index
So it returns first element from the given array.
Here is an example:
const arr = ['lol','ball','doll']; console.log(arr); // 'lol'
In es6, we have a slice( ) method, if we pass
0,1 as arguments to the
slice() method,we can get the first element of an array.
const arr = ['lol','ball','doll'] console.log(...arr.slice(0,1)); // 'lol'
slice() method doesn’t modify your original array instead of creates a new array with the modified values.