Lets say I have an array like this in ember controller,
selectedUsers: ["Popeye", "Sulley", "Gru"];
Now, how can i render each users in an unordered list using handlebars? Can i use the {{#Each}}
helper?
To iterate over an object with JavaScript and Handlebars. js, we can use the #each keyword. to add the Handlebars script and the template for looping through each entry in data . We use #each this to loop through each array property.
Helpers can be used to implement functionality that is not part of the Handlebars language itself. A helper can be registered at runtime via Handlebars. registerHelper , for example in order to uppercase all characters of a string.
{{#foreach}} is a special loop helper designed for working with lists of posts. It can also iterate over lists of tags or users if needed. The foreach helper will output the content placed between its opening and closing tags {{#foreach}}{{/foreach}} once for each item in the collection passed to it.
You can use the unless helper as the inverse of the if helper. Its block will be rendered if the expression returns a falsy value. If looking up license under the current context returns a falsy value, Handlebars will render the warning. Otherwise, it will render nothing.
Yes, you should use an each
loop:
<ul>
{{#each selectedUsers}}
<li>{{ this }}</li>
{{/each}}
</ul>
From the docs:
You can iterate over a list using the built-in
each
helper. Inside the block, you can usethis
to reference the element being iterated over.<ul class="people_list"> {{#each people}} <li>{{this}}</li> {{/each}} </ul>
when used with this context:
{ people: [ "Yehuda Katz", "Alan Johnson", "Charles Jolley" ] }
will result in:
<ul class="people_list"> <li>Yehuda Katz</li> <li>Alan Johnson</li> <li>Charles Jolley</li> </ul>
You can use the this expression in any context to reference the current context.
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