What?
This is an example of Javascript code to update and display the elapsed/remaining hours minutes and seconds in real-time.

Why?
I know there are a lot of articles out there that write about the same, but this is an example that I was coding and found to be one of the most reduced cut down formats I've made. I thought I'd make a note of it to not have to search elsewhere...

This example specifically displays the time remaining on an access_token which is generated from an OAuth 2.0 process. I want to display to the user how much time is left before another access token will be generated and how long ago was the last token created.

How?
So almost pure JS. I'm working out the seconds remaining and seconds elapsed in PHP first then passing these as two variables to the below code but you could get your values from anywhere:

What?
An article on how to quickly adapt an array code and sort by its values. Surprising how many examples are on the web and everyone saying you're doing it wrong... Which is true but quite unhelpful. The original code is not my own either but that's not an excuse. I also found that examples across the web were only partial and thought I'd write a full example here. No jQuery and using the Google Chrome browser. I wanted to:
  1. Sort the array by its values
    copyraw
    my_records.sort();
    1.  my_records.sort()
  2. Iterate through and output these in HTML
    copyraw
    for(i=0;i<my_records.length;i++){
            // do something to my_records[i]
    }
    1.  for(i=0;i<my_records.length;i++){ 
    2.          // do something to my_records[i] 
    3.  } 

Category: JavaScript :: Article: 632

What?
This is to describe how to change the value of a field of a form from it's default when it is clicked on so that it auto-clears and changes to how it normally works.

Example?
Note the value in the below field. Now click on it and it disappears, allowing you to type normally. Clear whatever you type so the field is empty and click somewhere on the page (not on a link as this will take you to another page) and the field returns to displaying "Name:".

Why?
I've noticed a lot of solutions now use JQuery or Mootools but most of these will not work in Internet Explorer 7 which is unfortunately still in use. I needed a back-to-basics solution and this is the one I have used since my fad of JavaScript 1.2 in the 90s. For broader compatibility, this is my recommended solution.


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