ejs

EJS学习(一)之特性、安装、工作原理

余生长醉 提交于 2019-11-29 06:39:52
前言 EJS,"E" 代表 "effective",即【高效】,EJS 是一套简单的JavaScript模板,EJS 没有如何组织内容的教条;也没有再造一套迭代和控制流语法;有的只是普通的 JavaScript 代码而已! 可以利用ejs实现前端后端交互,仅仅用简单javascript代码即可生成HTML页面,一般用来和express一起用。 ejs-非破坏式、非侵入式、弱依赖(和普通的html和css可以共存)文件以.ejs结尾 进一步了解 纯 JavaScript 快速开发 语法简单 执行迅速    我们都知道 V8 以及类似 JavaScript 引擎的速度有多快。EJS 能够缓存 JS 函数的中间代码,从而提升执行速度 易于调试    调试 EJS 错误(error)很容易:所有错误都是普通的 JavaScript 异常,并且还能输出异常发生的位置。 特性 快速编译与绘制输出 简洁的模板标签:<% %> 自定义分割符(例如:用 <? ?> 替换 <% %>) 引入模板片段 同时支持服务器端(node)和浏览器 JS 环境 JavaScript 中间结果静态缓存 模板静态缓存 兼容 Express 视图系统 安装 方法一:通过npm来安装 作为包依赖在node中使用安装在本地 npm install ejs 方法二:通过js引入 最新的浏览器版本 作为js引入在html中引入

EJS: <%= versus <%-

走远了吗. 提交于 2019-11-29 06:26:51
I'm using EJS with a Node.js web server I'm building. I see many EJS examples that sometimes use <%= when outputting HTML or strings, while other examples (sometimes within the same template) use <%- . I tried to reference the EJS docs and getting started guide , but both gave no info about the <%- notation. Also, my Google search attempts yielded nothing useful. Thanks! The version of EJS you're likely using in Node is not the same as the version you see on Google code; in the Node version, <%= escapes the HTML going into the buffer, while <%- does not. source From http://ejs.co/ : <%

Serving a static HTML page containing an image using Node JS / Express

佐手、 提交于 2019-11-29 05:06:36
I am able to serve static HTML pages using express. I also installed "ejs" to render the page with data from local variables in my .js file. I just need to display a small logo in the corner of the page along with the rest of the data. Opening just the html file in the browser loads the image just fine, but with the server I get a broken image. I think it may be a problem with my file path or directory structure. Here is my original simple code without the futile attempts: server.js var express = require ('express'); var fs = require ('fs'); var app = express (); var bodyParser = require (

How to use node modules (like MomentJS) in EJS views?

无人久伴 提交于 2019-11-29 04:44:41
问题 To use MomentJS in views/custom.ejs, what is the correct way (if any)? Server side routes/index etc we can easily use require('moment'); etc and it works fine. Server Side (EJS views) views/custome.ejs, something like <% var m = require('moment'); %> doesn't work I am using ExpressJS with EJS as the template engine. 回答1: I found another way of doing this, and I think it has some advantages. Don't polute your code exporting filters. Access any method without the need to export them all. Better

How can I use Underscore.js templates in conjunction with EJS?

て烟熏妆下的殇ゞ 提交于 2019-11-29 04:13:06
They both use the same syntax for inserting variables. For example if I want the following <%= username %> In my Underscore, my main EJS breaks because it tries to replace username and no such variable exists in the main page. I think square brackets will work in EJS by default: [%= username %] And if you need to get fancier, the EJS github page describes how to create custom tags: var ejs = require('ejs'); ejs.open = '{{'; ejs.close = '}}'; I think that 2nd "fancier" part might be specific to server-side applications https://github.com/visionmedia/ejs Using the client side GitHub example, you

How to generate content on ejs with jquery after ajax call to express server

余生颓废 提交于 2019-11-29 02:29:42
I want to implement a search feature on my website so what i do is make a jquery ajax call with the text to the express server which searches mongodb and gives an object array of the users that match. Now i receive this object succesfully but since there are no partials on ejs how can i refresh just the results list generating the html for each user? matth The node EJS packages comes with a client-side javascript library located in ./node_modules/ejs/ejs.js or ./node_modules/ejs/ejs.min.js . After you include this on your page, you'll want to load the template, then generate the HTML from the

How would you check for undefined property in ejs for node.js?

最后都变了- 提交于 2019-11-28 21:09:15
What is the best way to check for an undefined property in an ejs template? (I'm using the node.js package by TJ Holowaychuk) Example: var tpl = '<% if (foo) { %>foo defined<% } else { %>foo undefined<% } %>'; console.log(ejs.render(tpl, { locals: { bar: "baz" } })); I'd expect this to render "foo undefined". It does throw an foo undefined error instead. I know that this is not supposed to be an issue, since this is expected behavior in the tests . Is there an easy way to avoid this? The only solution I found is using the hasOwnProperty method. var tpl = '<% if (hasOwnProperty("foo")) { %>foo

Interweave EJS and Javascript variables inside <% tags

只谈情不闲聊 提交于 2019-11-28 18:53:15
I need to use a Javascript variable (defined in the front-end) in some EJS code, as follows: var selected = 1; <% for (var i=0; i < supplies.length; i++) { %> if (i == selected) { console.log(supplies); } <% } %> I'm using EJS, Express.js and socket.io. I could convert the Javascript variable to an EJS variable by sending a message to my Node.js server instance, but that's kind of silly... Is there a way to use Javascript variables inside EJS? EDIT: I want to access supplies, a javascript array, after the user selected an item from a drop down menu. When he selects this item, a javascript

Error: Cannot find module 'ejs'

怎甘沉沦 提交于 2019-11-28 18:05:01
Here is my complete error: Error: Cannot find module 'ejs' at Function._resolveFilename (module.js:317:11) at Function._load (module.js:262:25) at require (module.js:346:19) at View.templateEngine (/Users/shamoon/local/node/lib/node_modules/express/lib/view/view.js:133:38) at Function.compile (/Users/shamoon/local/node/lib/node_modules/express/lib/view.js:65:17) at ServerResponse._render (/Users/shamoon/local/node/lib/node_modules/express/lib/view.js:414:18) at ServerResponse.render (/Users/shamoon/local/node/lib/node_modules/express/lib/view.js:315:17) at /Users/shamoon/Sites/soldhere.in/app

Rails with backbone-rails: asset helpers (image_path) in EJS files

。_饼干妹妹 提交于 2019-11-28 18:01:41
I have a Rails 3.1 app that uses the codebrew/backbone-rails . In a .jst.ejs template, I would like to include an image, like so: <img src="<%= image_path("foo.png") %>"/> But of course the asset helpers are not available in JavaScript. Chaining ERB (.jst.ejs.erb) does not work, because the EJS syntax conflicts with ERB. Here is what I know: The asset helpers are not available in the browser, so I need to run them on the server side. I can work around the problem by making the server dump various asset paths into the HTML (through data attributes or <script> and JSON) and reading them back in