handlebars.js | 易学教程

Executing javascript inside Handlebars template

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I'm totally new to js template engines. Handlebars seems to be the popular choice. I don't dislike the syntax for doing conditions, loops and so on, but since I'm perfectly capable of and feel more comfortable using plain old js and I'm not planning to let anyone who doesn't know js touch my templates, I'm asking if Handlebars supports this. Of course the most popular choice isn't always the best. I'm more of a Mootools guy and jQuery drives me crazy(great library, just not for me). So if Handlebars was jQuery of template engines, what would be Mootools? Peter Lyons One of the central ideas

Pass JavaScript object/hash to Handlebars helper?

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Is it possible to pass a JavaScript object/hash into a Handlebars helper call? I'd like to do something like this: <label>Label here</label> {{#textField {'id':'text_field_1', 'class':'some-class', size:30} }}{{/textField}} <p>Help text here.</p> Here is a jsFiddle . Currently it produces the following error Uncaught Error: Parse error on line 3: ...bel> {{#textField {'id':'text_field_1' ----------------------^ Expecting 'CLOSE', 'CLOSE_UNESCAPED', 'STRING', 'INTEGER', 'BOOLEAN', 'ID', 'DATA', 'SEP', got 'INVALID' Alternatively I could probably do this and split on ',', but I am not fond of

Does handlebars.js replace newline characters with <br>?

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问题 Trying to use handlebars.js for templating but the library seems to ignore newlines. What is the correct way to deal with newlines? Should they be replaced manually after the templating action? 回答1: It doesn't do so automatically, but using the helpers feature this can be achieved: JS: Handlebars.registerHelper('breaklines', function(text) { text = Handlebars.Utils.escapeExpression(text); text = text.replace(/(\r\n|\n|\r)/gm, '<br>'); return new Handlebars.SafeString(text); }); HTML template:

Handlebars.js in Django templates

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问题 I need a javascript templating system and i think handlebars.js does an excellent job in this case. I'm having syntax conflicts with handlebars templates inside a django template because django tries to render handlebars variables. Is there a tag in django templates to stop rendering a block with curly braces? Something like: {{ django_context_varable }} #works {{% raw %}} <script id="restaurants-tpl" type="text/x-handlebars-template"> <ul> {{#restaurants}} #not rendered by django, plain text

handling jQuery onClick event on handlebars

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I would like to set up a simple jQuery onClick event to make the UI dynamic on a handlebars template. I was wondering to addClass() after a specific click. consider the HTML (generated by handlebars) {{#if hasButton}} <div id="container"> <button type="submit" class="myButton">Click me!</button> </div> {{/if}} i.e: After a click within a button, its container will receive a loading class that will create the interaction using CSS. $(".myButton").on("click", function(event){ $(this).parent().addClass("loading"); }); This code should goes on my handlebars-template or should I rewrite it into a

Node.js + Express + Handlebars.js + partial views

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问题 I am trying to make a simple HelloWorld project with Node.js|Express using Handlebars.js as a server template engine. The problem is that I couldn't find any examples of using such chain, especially with multiple view. For example I would like to define header view: <header> <span>Hello: {{username}}</span> </header> And use it in every page with other views. Maybe I am thinking about this views in a wrong way, I thought that view is kind of control that I can reuse on any page inside any

How do I use nested iterators with Mustache.js or Handlebars.js?

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问题 I would like to use handlebars.js or mustache.js to iterate over a list of families, and then iterate over that family's members. Inside of both loops, I want to display properties of both. However, once I get into the second iteration, none of the family variables are visible. {{#each families}} {{#each members}} <p>{{ ( here I want a family name property ) }}</p> <p>{{ ( here I want a member name property ) }}</p> {{/each}} {{/each}} Is this possible? I'd greatly appreciate any help! 回答1:

Meteor - return asynchronous function to handlebar template?

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I am trying to generate a Flickr url based on a Flickr API call, and then return that result to a handlebars.js template. I am struggling to find a way around asynchronous processes. I have tried to create a callback function, but I am still uncertain how to get a defined object or variable into the HTML template. Here is the code for the Flickr API function: var FlickrRandomPhotoFromSet = function(setID,callback){ Meteor.http.call("GET","http://api.flickr.com/services/rest/?method=flickr.photosets.getPhotos&api_key="+apiKey+"&photoset_id="+setID+"&format=json&nojsoncallback=1",function (error

Meteor and handlebars #each to iterate over object

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问题 I want to use handlebars #each with an object that's not an array. How do I do that? I need it to still work with meteor's special features with #each . My object is in the form of: { john: "hello", bob: "hi there" } I'm trying to get an output like this: <div>hello</div> <div>hi there</div> 回答1: You need to use a helper in your js to help handlebars understand your object: Add to your client js Template.registerHelper('arrayify',function(obj){ var result = []; for (var key in obj) result

Ember.Component (block form): more than one outlet {{yield}}

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I see that ember has a very nice mechanism for wrapping content in a component using the {{yield}} mechanism documented here . So, to use the example in the documentation, I can have a blog-post component template defined like so: <script type="text/x-handlebars" id="components/blog-post"> <h1>{{title}}</h1> <div class="body">{{yield}}</div> </script> I can then embed blog-post into any other template using the form: {{#blog-post title=title}} <p class="author">by {{author}}</p> {{body}} {{/blog-post}} My question is, can I specify two different {{yield}} outlets in the components template?