JSFiddle - React, Tailwind, and code Playground

by terby

JavaScript

//var arr = ["4", "1", "3", "2"];
var arr = [["4", "a"], ["1", "b"], ["3", "c"], ["2", "d"]];

for (var i = 0; i < arr.length; i++) {
	
}

//alert(arr.sort());

arr = arr.sort(function(a,b) {
    return a[0] - b[0];
});
alert(arr);