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How to check the number of seconds(or ms) spent inside the particular loop in javascript. I have a sorting algo implemented in javascript , now I am using bubble sort , I want to use quick sort. I know in terms of time efficiency Quick sort is good. But I want to calculate the real number of sec or milli sec spent inside the innermost loop. How do I do in javascript ?
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The parseInt() converts the numeric string value to an integer value. The for loop is used to find the sum of natural numbers up to the number provided by the user. The value of sum is 0 initially. Then, a for loop is used to iterate from i = 1 to 100 .
var start = new Date(). getTime(); for (i = 0; i < 50000; ++i) { // do something } var end = new Date(). getTime(); var time = end - start; alert('Execution time: ' + time); One can solve the same problem using a variety of different strategies Javascript Calculate Time.
Javascript Clock Code (12 hours): function currentTime() { let date = new Date(); let hh = date. getHours(); let mm = date. getMinutes(); let ss = date. getSeconds(); let session = "AM"; if(hh == 0){ hh = 12; } if(hh > 12){ hh = hh - 12; session = "PM"; } hh = (hh < 10) ?
The simplest method is to compare by Date.
var old_time = new Date();
...
var new_time = new Date();
var seconds_passed = new_time - old_time;
By the way, why don't you just use the built-in .sort() (https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/sort) method?
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