Menu
One very attractive feature of ES6 is its built in template strings. At this point in time, since transpiling to ES5 is a must for cross browser compatibility, I am curious what the performance differences are between transpiled ES6 templates and existing solutions such as Mustache, Handlebars, Jade etc. Obviously if you need advanced features from a templating language, ES6 templates may not fulfill all of your needs, but if you are performing basic templating, is it fair to say that ES6 template strings could replace your current templating engine?
592
You actually dont need them, but they have a lot of features that makes your pages more dynamic..
I would consider building react component libraries react front-end development. If your talking about tempting engines in node app if you are taking about node. js then yes it's necessary as you need several side rendering then you have to use a templating engine on the server.
A template engine enables you to use static template files in your application. At runtime, the template engine replaces variables in a template file with actual values, and transforms the template into an HTML file sent to the client. This approach makes it easier to design an HTML page.
JavaScript templating engines enable you to add dynamic logic to static HTML pages. For instance, you can declare a variable that the engine replaces with an actual value at runtime. Similarly, you can use conditionals, loops, filters, mixins, and other constructs, depending on the templating engine you choose.
Each engine comes with its own syntax that you need to learn. However, the learning curve is usually pretty flat, as template syntaxes are purposefully straightforward and easy to memorize. In this article, we have collected seven JavaScript templating engines you can use in your everyday workflow.
A lot of of ES6 purists want to remove jQuery entirely, but as you said once someone starts going beyond a few one-off replacements, they often want to re-organize your ES6 code into something more efficient, the discussion will certainly focus on writing a wrapper library or utility functions for the ES6 code.
For example: ES2015 introduced ‘Template Literals’. They allow us to do this instead: The back ticks define the contents as a template literal and then we can interpolate values from elsewhere in JavaScript using the $ {} pattern. Anything inside the curly braces, which in turn are within the backticks, are evaluated and then inserted as a string.
Template strings in ES6 aren't really related to the various template engines that are implemented in JavaScript.
Most template engines (Underscore, Lodash, Mustache, Handlebars, Jade, etc) all have special syntaxes and special forms. Some might give you the ability to define blocks, use special mark up for various things, or giving you unique tags for logic/looping structures.
ES6 Template Strings give you the full power of JavaScript without asking you to learn a specialized/opinionated template engine.
// underscore
var compiled = _.template("hello: <%= name %>");
compiled({name: 'moe'});
// => "hello: moe"
// ES6 Template String
let name = 'moe';
`hello: ${name}`;
// => "hello: moe"
Notice the ugly <%= %> tags in the underscore template? That's just something underscore invented to solve a "problem"; the "problem" being that before ES6, JavaScript didn't have any sort of string interpolation. People thought it was tedious to write things like
var greeting = "hello";
var name = "moe";
var emotion = "depressed";
greeting + ", my name is " + name + ". I feel " + emotion + ".";
// => "hello, my name is moe. I feel depressed."
With ES6, JavaScript gets native string interpolation via ${...}. Pretty much anything can go inside ${} as long as it's valid JavaScript.
let name = "alice";
let emotion = "happy";
`${greeting || "hi"}, my name is ${name}. I feel ${emotion}.`
// => "hi, my name is alice. I feel happy."
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
