When comparing Underscore Templates vs FLAVE, the Slant community recommends Underscore Templates for most people. In the question“What are the best JavaScript templating engines?” Underscore Templates is ranked 7th while FLAVE is ranked 26th. The most important reason people chose Underscore Templates is:
Due to Underscore's optimized performance and ease-of-use it can be deemed as most fit for use in small sections of your code, where you just want a quick and simple template to render your content.
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Pros
Pro For micro templating
Due to Underscore's optimized performance and ease-of-use it can be deemed as most fit for use in small sections of your code, where you just want a quick and simple template to render your content.
Pro Pre-compilation
Underscore allows you to compile your template once before data is inserted to it.
Pro Syntax Highlighting
Syntax Highlighting extensions for Atom and VSCODE
Pro JavaScript allowed in views
Pro Helper functions
Can write pure JavaScript helper functions to include in the view file.
Pro Multiple Templates in a single file
Optionally encapsulate views within a class as well as have as many view as you want.
Pro Not white space sensitive
Cons
Con Not a true templating engine
template
in underscore is simply a function which compiles a piece of template into HTML. It's useful for rendering HTML from JSON and it's not very useful when building complex frontend templates.
Con Limited support and testing
Con No data binding
Flave only generates HTML.
