Javascript eval() benchmark

benchmark.js

/* Test Eval */

var eval_string = 'var x = 1;'
                + 'if(x >= 1) {'
                + '  var y = x * 2;'
                + '  if(y==3) { y=3; }'
                + '}';
                

                
var eval_start = (new Date()).getTime();

for(var i=0; i<1000000; i++) {
  eval(eval_string);
}

var eval_end = (new Date()).getTime();

var eval_diff = (eval_end - eval_start);

console.log('eval time -> ' + (eval_diff/1000) + ' seconds');

/* Test normal js */

var js_start = (new Date()).getTime();

for(var i=0; i<1000000; i++) {
  var x = 1;
  if(x >= 1) {
    var y = x * 2;
    if(y==3) { y=4; }
  }
}


var js_end = (new Date()).getTime();

var js_diff = (js_end - js_start);

console.log('js time   -> ' + (js_diff/1000) + ' seconds');

node

node benchmark.js