how to use the template function from the underscore library in javascript

To use the template function from the Underscore library in JavaScript, you first need to include the Underscore library in your project. You can either download the library or include it from a CDN.

Once you have included the library, you can use the template function by passing in a template string and an optional data object. The template function will then return a compiled template function that you can call with a data object to get the rendered template.

Here is an example:

index.tsx
// Include Underscore library
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js"></script>

// Define a template string
var templateString = "<h1><%= title %></h1><p><%= description %></p>";

// Compile the template
var compiledTemplate = _.template(templateString);

// Define a data object
var data = { title: "My Title", description: "This is a description" };

// Render the template with the data
var renderedTemplate = compiledTemplate(data);

// Add the rendered template to the HTML
document.getElementById("my-element").innerHTML = renderedTemplate;
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In this example, we first include the Underscore library from a CDN. We then define a template string using the <%= %> syntax to indicate where we want to insert dynamic data.

Next, we compile the template using the _.template() function and store the returned compiled template function in a variable.

We then define a data object that contains the dynamic data we want to include in our template.

Finally, we render the template by calling our compiled template function with the data object, and insert the resulting HTML into a DOM element with the id "my-element".

This is just a simple example of how to use the template function from the Underscore library in JavaScript. The template function is quite powerful and offers a lot of features for creating complex templates.