console.log(string.length); 之间的 JavaScript 区别； 和 console.log([string.length]);

Question

The section of code is

var string = ['one','two','three'];
console.log(string.length-1);
console.log([string.length-1]);

Output:

3
[ 3 ]

Can anyone tell me why my output is like this in the second scenario.It is a JavaScript code.

Answer 1

Square brackets returns an array. Array definition like this : var arr = [1,2,3];

In your scenario console.log( [string.length-1] );