Display only 10 characters of a long string?

If I understand correctly you want to limit a string to 10 characters?

var str = 'Some very long string';
if(str.length > 10) str = str.substring(0,10);

Something like that?

Creating own answer, as nobody has considered that the split might not happened (shorter text). In that case we don't want to add '...' as suffix.

Ternary operator will sort that out:

var text = "blahalhahkanhklanlkanhlanlanhak";
var count = 35;

var result = text.slice(0, count) + (text.length > count ? "..." : "");

Can be closed to function:

function fn(text, count){
    return text.slice(0, count) + (text.length > count ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10));

And expand to helpers class so You can even choose if You want the dots or not:

function fn(text, count, insertDots){
    return text.slice(0, count) + (((text.length > count) && insertDots) ? "..." : "");
}

console.log(fn("aognaglkanglnagln", 10, true));
console.log(fn("aognaglkanglnagln", 10, false));

var example = "I am too long string";
var result;

// Slice is JS function
result = example.slice(0, 10)+'...'; //if you need dots after the string you can add

Result variable contains "I am too l..."

And here's a jQuery example:

HTML text field:

<input type="text" id="myTextfield" />

jQuery code to limit its size:

var elem = $("#myTextfield");
if(elem) elem.val(elem.val().substr(0,10));

As an example, you could use the jQuery code above to restrict the user from entering more than 10 characters while he's typing; the following code snippet does exactly this:

$(document).ready(function() {
    var elem = $("#myTextfield");
    if (elem) {
        elem.keydown(function() {
            if (elem.val().length > 10)
                elem.val(elem.val().substr(0, 10));
        });
    }            
});

Update: The above code snippet was only used to show an example usage.

The following code snippet will handle you issue with the DIV element:

$(document).ready(function() {
    var elem = $(".tasks-overflow");
    if(elem){
        if (elem.text().length > 10)
                elem.text(elem.text().substr(0,10))
    }
});

Please note that I'm using text instead of val in this case, since the val method doesn't seem to work with the DIV element.