Replace military time to normal time with Javascript

Question

With this script

getFormattedTime = function (fourDigitTime){
var hours24 = parseInt(fourDigitTime.substring(0,2));
var hours = ((hours24 + 11) % 12) + 1;
va         


        

Answer 1

You can use word boundaries in your regular expression to match 4 digits, and then your getFormattedTime function as a replacement function to .replace:

$('body').html(function(_, old) {
    return old.replace(/\b\d{4}\b/g, getFormattedTime);
});

Please notice also the comments by @Doorknob and @Pointy. To replace only time "numbers", you will need to markup them semantically, for example with html5 tags:

Class starts at 1700, please be there by 1630 and sign in by 1645.

$('time').text(function(_, old) {
    return getFormattedTime(old);
});