Search results
13 sty 2012 · Handlebars.registerHelper('ifCond', function(v1, v2, options) { if(v1 === v2) { return options.fn(this); } return options.inverse(this); }); You can then call the helper in the template like this {{#ifCond v1 v2}} {{v1}} is equal to {{v2}} {{else}} {{v1}} is not equal to {{v2}} {{/ifCond}}
21 gru 2021 · Helpers are the proposed way to add custom logic to templates. You can write any helper and use it in a sub-expression. For example, in checking for initialization of a variable the built-in #if check might not be appropriate as it returns false for empty collections (see Utils.isEmpty). You could write a helper that checks for "undefined" such as:
10 mar 2024 · The handlebar supports the if and else conditional block to render HTML templates. It uses if and else helper classes to achieve that. It evaluates an expression, executes if block for truthy values, else block executed for false value.
13 sty 2014 · Handlebars doesn’t support conditional statements, so code like {{#if x > y}} isn’t possible. What do you guys think would be the best solution for it? Handlebars.registerHelper("only_once", function(item, fn){ var buffer; var i = 0; if (i > 0) { buffer = false; } i++; return buffer; });
I agree with the core argument that Handlebars is bare and you add these things. It means you can add an implementation appropriate for you. Here is a simple version: Handlebars.registerHelper ('ifCond', function (v1, v2, options) { if (v1 === v2) { return options.fn (this); } return options.inverse (this); }); BUT.
18 mar 2021 · I created an "ifCond" helper like in the tests, and would like to put an {{#each}} iterator inside one of the branches and am having trouble. Not sure if the "ifCond" helper is ...
Handlebars.js if-condition helper. Raw. gistfile1.js. Handlebars.registerHelper ('ifCond', function (v1, operator, v2, options) { switch (operator) { case '==': return (v1 == v2) ? options.fn (this) : options.inverse (this); break; case '!=': return (v1 != v2) ? options.fn (this) : options.inverse (this); break; case '===':
