Question

Lets assume you can never know what string will be passed to the browser, any combination of any characters of any length and I want to limit this to lets say.. 50 chars.

This is what I have at the moment:

<script type="text/javascript">
    var x = "Hello this sentance was created in the browser!"
    for(i=0; i<x.length; i++){
        if(i == 50){

        }
    }
</script>

Eventually x will be something like:

var x = $('#textBit').html();

How will I remove everything in the array (string) after position 50, will I need a new for loop kinda like this (it may be wrong just thinking it up) pseudo code:

loop remainder string{
    do until end of array{
        remove item
    }
}

Or is there a better way of doing it? Thanks.

Answer 1

Just use substr() (MDN docu). This will return the substring meeting you criteria, e.g., beginning at the start and having at most 50 characters:

var x = "Hello this sentance was created in the browser!"

var shortString = x.substr( 0, 50 );