Iterating over basic “for” loop using Handlebars.js

Question

I’m new to Handlebars.js and just started using it. Most of the examples are based on iterating over an object. I wanted to know how to use handlebars in basic for loop.

Example.

for(i=0 ; i<100 ; i++) {    create li's with i as the value } 

How can this be achieved?

Answer 1

There's nothing in Handlebars for this but you can add your own helpers easily enough.

If you just wanted to do something n times then:

Handlebars.registerHelper('times', function(n, block) {     var accum = '';     for(var i = 0; i < n; ++i)         accum += block.fn(i);     return accum; }); 

and

{{#times 10}}     <span>{{this}}</span> {{/times}} 

If you wanted a whole for(;;) loop, then something like this:

Handlebars.registerHelper('for', function(from, to, incr, block) {     var accum = '';     for(var i = from; i < to; i += incr)         accum += block.fn(i);     return accum; }); 

and

{{#for 0 10 2}}     <span>{{this}}</span> {{/for}} 

Demo: http://jsfiddle.net/ambiguous/WNbrL/