It was deprecated in favor of the compileClient function in 2013 year, and its use has been warned against since then. The client option was used for client function compilation. These options were used in conjunction with the removed Compiler, Lexer, and Parser classes. The Pug v2 equivalent of classes are now part of the pug-code-gen, pug-lexer, and pug-parser packages, with various incompatible changes.
Pug language reference code#
Pug v2 allows customization of the compilation process through plugins, and these exported properties are now removed. Like Sass/scss, the css preprocessor, Pug helps to write HTML code simpler, faster, and more powerful. Users were allowed to create their own compilers, lexers, and parsers that derive from these classes, in order to customize compilation behaviors. Previously, the undocumented Jade compiler, lexer, and parser classes were exported through these properties. Utils.walkAST has been split into the pug-walk package. The compiled function can be re-used, and called. Call that resultant function with your data, and voilà, it will return a string of HTML rendered with your data. pug.compile () will compile the Pug source code into a JavaScript function that takes a data object (called locals ) as an argument. All users are advised to use that package. The general rendering process of Pug is simple. Utils.stringify has been split from Pug into the js-stringify package, with additional protection against possible XSS attacks. Its functionality can be roughly replicated using the ES2015 Object.assign method, among other variants.
rge has been removed from Pug, as it is not used anymore. Previously, the undocumented jade.utils object contained three functions that are useful for template engine internals. To modify this array, you could write a codeGen plugin. In Pug v2, this array has been split from Pug into the void-elements package. Previously, the undocumented lfClosing array could used to extend or modify the behavior of self-closing tags. This approach allows us to reuse static web pages having dynamic data. Pug also support JavaScript natively, hence using JavaScript expressions, we can format HTML code. In Pug v2, we have abandoned this approach in favor of duck typing using the type property in AST nodes. Pug has many powerful features like conditions, loops, includes, mixins using which we can render HTML code based on user input or reference data. Previously, the undocumented jade.nodes object held a hash of classes that serve as the constructor of the nodes of the (also undocumented) Jade abstract syntax tree. To extend doctype shortcuts, you could write a codeGen plugin. In Pug v2, this object has been split from Pug into the doctypes package. By extending this object, users could create additional or modify existing doctype shortcuts. Previously, the undocumented jade.doctype object contained a hash of doctype shortcuts. In your application, make sure you are not using these APIs. These exported properties and compilation options have been removed. Simply remove - and your code should work again. The same applies to parentheses-less for keyword. In both cases the default behavior is to escape the line.Each is not part of the JavaScript syntax, so the use of each “keyword” in a JavaScript line is confusing as well as hackish (in terms of implementation). In the second line the paragraph content is a text string concatenated with the title variable. So for example, in the first line below, the content of the h1 tag will be variable title (either defined in the file or passed into the template from Express). If a tag is followed by the equals sign, the following text is treated as a JavaScript expression. characters like " >" are converted to their HTML code equivalents like " >") to prevent JavaScript injection or cross-site scripting attacks. The values of all attributes are escaped (e.g. meta(name='viewport' content='width=device-width initial-scale=1').Supports reusability (DRY) To read about the features of the language, select them from the navigation menu.
script(type='text/javascript'), link(rel='stylesheet', href='/stylesheets/style.css') Jade is a terse language for writing HTML templates.Inside the parentheses, the attributes are defined in comma- or whitespace- separated lists of the pairs of attribute names and attribute values, for example: Strong focus on performance and powerful features.Įlement attributes are defined in parentheses after their associated element. Pug is a terse and simple template language with a
P A variable named "title" does not exist. - Introducing a single line JavaScript comment with "//-" ensures the comment isn't rendered to HTMLĪ(href='/catalog/authors') Some link text You can add single line JavaScript comments and they are generated to HTML comments P= 'Evaluated and escaped expression:' + title
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