Native Javascript printf-like function

Question

Browsers such as Chrome and Firefox offer a console API that enable the emission of formatted log messages, like this:

>>> console.log("%s has %d points", "Sam", "100");
Sam has 100 points

Now, suppose I want to generate a formatted string but not necessarily log it into the console. Do the browsers expose the native function that produces the log strings? Is it ECMA-stardard? Or should we be content with third party libraries such as JavaScript sprintf for now?

Answer 1

ES6 will introduce some basic string formatting in the form of:

`${name} has ${val} points`;

But there's currently no native string formatting in ES5.