JS array mod. perf.

by HoffZ

JavaScript

var i = 0, len = 40000;
var arr = [];

for (i; i < len; i++) {
	arr.push({
  	felt1: 'a_' + i,
    felt2: 'b_' + i
  })
}


var _initial = new Date();
var arr2 = [];
i = 0;
for (i; i < len; i++) {
	if (arr[i].felt2 === 'b_10000') {
  	continue;
  }
  arr2.push(arr[i].felt2);
}

var _final = new Date();
console.clear()
console.log('arr1 len ' + arr.length);
console.log('arr2 len ' + arr2.length);
console.log((_final - _initial)/1000)