mustache.compiler()

`mustache.compiler()` is a function in the Mustache templating library that compiles a Mustache template into a JavaScript function. The resulting function can then be used to render the template with a given set of data.

The function takes in a string representing the Mustache template as input, and returns a JavaScript function that can be executed to render the template. The returned function takes in an object representing the data to be rendered as input.

Here's an example usage:

var template = "{{name}} is {{age}} years old.";
var data = { name: "John", age: 30 };
var render = Mustache.compile(template);
var output = render(data);
console.log(output); // "John is 30 years old."