Use of Nodejs Express template (Ejs + Express)

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var app=require("express"                                                                                                                                                                                                                                                                       app.set("view engine","ejs");                                                                                                                                                                                                                                                                                                                                                                                                   app.get("/",function(req,res){                                                                                                                                res.render("index",{"title":"test"});                                                                                                                                   });                                                                                                                                                                                                                                                                                                                                                                                                          app.listen(3000);

1. Above is a basic example of express using template

App.set ("View Engine", "Ejs"); This sentence sets the template engine to Ejs (Http://github.com/visionmedia/ejs)

Ejs can be installed via NPM install Ejs

2, in the App.get.

Res.render ("index", {"title": "Test"}); will perform 2 steps.

1. Reads the contents of the./views/index.ejs file, and then replaces the title variable with test, for example <%=title%> changes to test. Assume that the returned content is Content1

2. Next, the./views/layout.ejs is read and the body variable is replaced with Content1, for example, <%=body%> becomes content1 content.

3. In 2, if you are unwilling to use the default Layout.ejs, you can specify it yourself. For example:

1	res.render("index",{"title":"test","layout":"main"});

Or

1	res.render("index",{"title":"test","layout":"main.ejs"});

4. If you are unwilling to use layout, you can set the layout to False, for example:

1	res.render("index",{"layout":false});

5. If you do not want each request to be set individually. You can use global settings:

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app.set("view options",{                                                                                                                                                                                                                                                                                                  "layout":false                                                                                                                                                                                               });

6. Ejs, the default closing mark is <%. %>, we can also define our own tags. For example:

1234	app.set("view options",{                                                                                     "open":"{{",                                                                                     "close":"}}"});

Use of Nodejs Express template (Ejs + Express)