Install<\/strong><\/p>\nIt’s easy to install EJS with NPM.<\/p>\n
$ npm install ejs<\/p>\n
Use<\/p>\n
Pass EJS a template string and some data. BOOM, you’ve got some HTML.<\/p>\n
let ejs = require(‘ejs’),<\/p>\n
people = [‘geddy’, ‘neil’, ‘alex’],<\/p>\n
html = ejs.render(‘<%= people.join(“, “); %>’, {people: people});<\/p>\n
Browser support<\/strong><\/p>\nDownload a browser build from the latest release, and use it in a script tag.<\/p>\n
<script src=”ejs.js”><\/script><\/p>\n
<script><\/p>\n
let people = [‘geddy’, ‘neil’, ‘alex’],<\/p>\n
html = ejs.render(‘<%= people.join(“, “); %>’, {people: people});<\/p>\n
<\/script><\/p>\n
Options<\/strong><\/p>\n\n- cache Compiled functions are cached, requires filename<\/li>\n
- filename Used by cache to key caches, and for includes<\/li>\n
- context Function execution context<\/li>\n
- compileDebug When false no debug instrumentation is compiled<\/li>\n
- client Returns standalone compiled function<\/li>\n
- delimiter Character to use with angle brackets for open\/close<\/li>\n
- debug Output generated function body<\/li>\n
- _with Whether or not to use with() {} constructs. If false then the locals will be stored in the locals object.<\/li>\n
- localsName Name to use for the object storing local variables when not using with Defaults to locals<\/li>\n
- rmWhitespace Remove all safe-to-remove whitespace, including leading and trailing whitespace. It also enables a safer version of -%> line slurping for all scriptlet tags (it does not strip new lines of tags in the middle of a line).<\/li>\n
- escape The escaping function used with <%= construct. It is used in rendering and is .toString()ed in the generation of client functions. (By default escapes XML).<\/li>\n
- outputFunctionName Set to a string (e.g., ‘echo’ or ‘print’) for a function to print output inside scriptlet tags.<\/li>\n
- async When true, EJS will use an async function for rendering. (Depends on async\/await support in the JS runtime.<\/li>\n<\/ul>\n
Tags<\/strong><\/p>\n\n- <% ‘Scriptlet’ tag, for control-flow, no output<\/li>\n
- <%_ \u2018Whitespace Slurping\u2019 Scriptlet tag, strips all whitespace before it<\/li>\n
- <%= Outputs the value into the template (HTML escaped)<\/li>\n
- <%- Outputs the unescaped value into the template<\/li>\n
- <%# Comment tag, no execution, no output<\/li>\n
- <%% Outputs a literal ‘<%’<\/li>\n
- %> Plain ending tag<\/li>\n
- -%> Trim-mode (‘newline slurp’) tag, trims following newline<\/li>\n
- _%> \u2018Whitespace Slurping\u2019 ending tag, removes all whitespace after it<\/li>\n<\/ul>\n
Includes<\/strong><\/p>\nIncludes are relative to the template with the include call. (This requires the ‘filename’ option.) For example if you have “.\/views\/users.ejs” and “.\/views\/user\/show.ejs” you would use <%- include(‘user\/show’); %>.<\/p>\n
You’ll likely want to use the raw output tag (<%-) with your include to avoid double-escaping the HTML output.<\/p>\n
<ul><\/p>\n
<% users.forEach(function(user){ %><\/p>\n
<%- include(‘user\/show’, {user: user}); %><\/p>\n
<% }); %><\/p>\n
<\/ul><\/p>\n
Caching<\/strong><\/p>\nEJS ships with a basic in-process cache for caching the intermediate JavaScript functions used to render templates. It’s easy to plug in LRU caching using Node’s `lru-cache` library:<\/p>\n
let ejs = require(‘ejs’),<\/p>\n
LRU = require(‘lru-cache’);<\/p>\n
ejs.cache = LRU(100); \/\/ LRU cache with 100-item limit<\/p>\n
If you want to clear the EJS cache, call ejs.clearCache. If you’re using the LRU cache and need a different limit, simple reset `ejs.cache` to a new instance of the LRU.<\/p>\n
Layouts<\/p>\n
EJS does not specifically support blocks, but layouts can be implemented by including headers and footers, like so:<\/p>\n
<%- include(‘header’); -%><\/p>\n
<h1><\/p>\n
Title<\/p>\n
<\/h1><\/p>\n
<p><\/p>\n
My page<\/p>\n
<\/p><\/p>\n
<%- include(‘footer’); -%><\/p>\n
Client-side support<\/strong><\/p>\nGo to the latest release, download .\/ejs.js or .\/ejs.min.js. Alternately, you can compile it yourself by cloning the repository and running jake build (or $(npm bin)\/jake build if jake is not installed globally).<\/p>\n
Include one of these files on your page, and ejs should be available globally<\/p>\n
Example<\/p>\n
<div id=”output”><\/div><\/p>\n
<script src=”ejs.min.js”><\/script><\/p>\n
<script><\/p>\n
let people = [‘geddy’, ‘neil’, ‘alex’],<\/p>\n
html = ejs.render(‘<%= people.join(“, “); %>’, {people: people});<\/p>\n
\/\/ With jQuery:<\/p>\n
$(‘#output’).html(html);<\/p>\n
\/\/ Vanilla JS:<\/p>\n
document.getElementById(‘output’).innerHTML = html;<\/p>\n
<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"
EJS is a simple templating language that lets you generate HTML markup with plain JavaScript. No religiousness about how to organize things. No reinvention of iteration and control-flow. It’s just plain JavaScript. Features Fast compilation and rendering Simple template tags: <% %> Custom delimiters (e.g., use <? ?> instead of <% %>) Includes Both server…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[8453],"tags":[8509],"class_list":["post-72779","page","type-page","status-publish","hentry","category-node-js","tag-ejs"],"acf":[],"yoast_head":"\n
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