To make this possible Flamingo rewrites the JavaScript to Go, on the fly. This allows frontend developers to use known a syntax and techniques, instead of learning a complete new template engine. The Pug Template engine compiles a subset of JavaScript (ES2015) to Go templates. Nevertheless, extensive usage of JavaScript is not advised. Please note that these function have to use reflection and it's up to the implementation to properly reflect the functionality and handle different inputs correctly. I give you bellow very simple example so you can understand how to.

if you worked with javascript jquery then you know you can get array length by variable.length so same way you can get array length or object length in vue js application. However, it is possible to recreate such functionalities in a third-party module via Flamingo's template functions.įor example pug_template itself has a substitute for the JavaScript Math library with the min, max and ceil functions. If you don't know how to get array length in vue js then i will give example for vue js get object length. How can I check if an array contains a certain string in PUG if examplearray. However neither of these options seem to work. I have tried the builtin javascript methods such as: array.includes(str) array.indexOf(str) > -1. Only snippets of JavaScript code can be run. I am attempting to check if an array contains a certain string. While this works for most standard statements and language constructs (default data types such as maps, list, etc), it does not support certain things such as Object Oriented Programming or the JavaScript standard library. The pug_template module takes this JavaScript and uses the Go-based JS engine, otto, to parse the JavaScript and transpile it into Go code. var prefix = 'foo _ ' ul each val, index in Module `flamingo-carotene-webpack-svg-sprite` In both the above code the Django template displays number of products if the list has more than zero items, else it displays that there are no products.Module `flamingo-carotene-smooth-scroll-to` It is a pre-built filter available in most Django versions and you do not need to define it separately. You can easily get the length of list in Django Template using length filter, as shown below. Let us say you want to execute a block of code if the products list has more than zero elements. Let us say you pass a list called products from a view to Django Template. Here are the steps to get length of list in Django Template. How to get length of list in Django Template In this article, we will learn how to get length of list in Django Template. Otherwise, execute another block of code. For example, you may want to execute a certain block of code if the list has more than specific number of elements. Sometimes you may need to get a count of number of elements in a list in Django Template.

Django templates help you work with various python data structures.

Get array length in pug template