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13 sty 2012 · Handlebars.registerHelper('if_or', function(elem1, elem2, options) { if (Handlebars.Utils.isEmpty(elem1) && Handlebars.Utils.isEmpty(elem2)) { return options.inverse(this); } else { return options.fn(this); } });
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.registerHelper('ifIsZero', function(value, options) { if(value === 0) { return options.fn(this); } return options.inverse(this); }); Then, you can call it in your template as follows to do something only if the index is equal to 0:
21 gru 2021 · 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: preparationScript.
11 gru 2019 · I've implemented a fairly simple helper to handle if conditions. For some reason, when i run the code first time, it ends up throwing an exception that this specific helper is not registered. If I hit the endpoint again, it works perfect...
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 '===': return (v1 === v2) ? options.fn(this) : options.inverse(this); break; case '!==':
1 participant. Hi, I'm implementing an ifCondition Helper Handlebars.RegisterHelper ("ifCond", (writer, context, args) => { if (args.Length != 5) { writer.Write ("ifCond:Wrong number of arguments"); return; } if (args [0] == null || args [0].GetType ().Name...
