Javascript printf/string.format

Try sprintf() for JavaScript.

I'll add my own discoveries which I've found since I asked:

• number_format (for thousand seperator/currency formatting)
• sprintf (same author as above)

Sadly it seems sprintf doesn't handle thousand seperator formatting like .NET's string format.

I use a small library called String.format for JavaScript which supports most of the format string capabilities (including format of numbers and dates), and uses the .NET syntax. The script itself is smaller than 4 kB, so it doesn't create much of overhead.

If you are looking to handle the thousands separator, you should really use toLocaleString() from the Javascript Number class since it will format the string for the user's region.

The Javascript Date class can format localized dates and times.

Hi there,

There are "sprintf" for javascript which you can find it from here: http://www.webtoolkit.info/javascript-sprintf.html

Regards, Pooria.

I use this simple function:

String.prototype.format = function() {
    var formatted = "";
    for(arg in arguments) {
        formatted += this.replace("{" + arg + "}", arguments[arg]);
    }
    return formatted;
};

That's very similar to string.format:

"{0} is dead, but {1} is alive!".format("ASP", "ASP.NET")