Embedded JavaScript templates.
$ npm install ejs
- Complies with the Express view system
- Static caching of intermediate JavaScript
- Unbuffered code for conditionals etc
<% code %> - Escapes html by default with
<%= code %> - Unescaped buffering with
<%- code %> - Supports tag customization
- Filter support for designer-friendly templates
- Client-side support
- Newline slurping with
<% code -%>or<% -%>or<%= code -%>or<%- code -%> - Templating with <%+ template.html %> and <%~ argumentName %>
- Mixins with <%# mixin.html %>
<% if (user) { %>
<h2><%= user.name %></h2>
<% } %>
ejs.compile(str, options);
// => Function
ejs.render(str, options);
// => str
cacheCompiled functions are cached, requiresfilenamefilenameUsed bycacheto key cachesscopeFunction execution contextdebugOutput generated function bodyopenOpen tag, defaulting to "<%"closeClosing tag, defaulting to "%>"-
-
All others are template-local variables
-
Custom tags can also be applied globally:
var ejs = require('ejs');
ejs.open = '{{';
ejs.close = '}}';
Which would make the following a valid template:
<h1>{{= title }}</h1>
EJS conditionally supports the concept of "filters". A "filter chain" is a designer friendly api for manipulating data, without writing JavaScript.
Filters can be applied by supplying the : modifier, so for example if we wish to take the array [{ name: 'tj' }, { name: 'mape' }, { name: 'guillermo' }] and output a list of names we can do this simply with filters:
Template:
<p><%=: users | map:'name' | join %></p>
Output:
<p>Tj, Mape, Guillermo</p>
Render call:
ejs.render(str, {
users: [
{ name: 'tj' },
{ name: 'mape' },
{ name: 'guillermo' }
]
});
Or perhaps capitalize the first user's name for display:
<p><%=: users | first | capitalize %></p>
Currently these filters are available:
- first
- last
- capitalize
- downcase
- upcase
- sort
- sort_by:'prop'
- size
- length
- plus:n
- minus:n
- times:n
- divided_by:n
- join:'val'
- truncate:n
- truncate_words:n
- replace:pattern,substitution
- prepend:val
- append:val
- map:'prop'
- reverse
- get:'prop'
To add a filter simply add a method to the .filters object:
ejs.filters.last = function(obj) {
return obj[obj.length - 1];
};Path to templates can be set by setting the setting property like
renderFile(path, { settings : { views : 'path/to/views' } }, cb)<html>
<head>
<title>My site </title>
<link href="/css/mysite.css" rel="stylesheet">
</head>
<body>
<%~ body %>
<hr>
<footer>
<p>© Brand 2012</p>
</footer>
<script src="/js/jquery.js"></script>
<%~ scripts %>
</body><%+ template.html %>
<%+ body %>
<p>settings here</p>
<%+%>
<%+ scripts %>
<script src="/js/settings.js"></script>
<%+%><html>
<head>
<title>My site </title>
<link href="/css/mysite.css" rel="stylesheet">
</head>
<body>
<p>settings here</p>
<hr>
<footer>
<p>© Brand 2012</p>
</footer>
<script src="/js/jquery.js"></script>
<script src="/js/settings.js"></script>
</body>Path to mixins can be set by setting the setting property like
renderFile(path, { settings : { views : 'path/to/views' } }, cb)<button id="mixin">
</button><div>
<%# mixin.html %>
</div><div>
<button id="mixin">
</button>
</div>include ./ejs.js or ./ejs.min.js and require("ejs").compile(str).
(The MIT License)
Copyright (c) 2009-2010 TJ Holowaychuk <tj@vision-media.ca>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.