How to use the precompile function from handlebars

Find comprehensive JavaScript handlebars.precompile code examples handpicked from public code repositorys.

handlebars.precompile is a function in the Handlebars.js library that compiles a Handlebars template into a JavaScript function that can be used to render the template.

powertemplate.js

GitHub: FMGSuite/handlebars-template-windows-service

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    res.header('Content-Type', 'text/html');
    res.send(data);
}


function respondFull(req, res, next) {
    var template = Handlebars.precompile(req.params.source);
    template = template.toString();
    //console.log(template);
    eval("var template2 = " + template);
    console.log(template2);

server.js

GitHub: trentonyo/ToshsTableTasksTorments

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}
else if (bytesRead > 0)
{
    /** Success **/
    let currentPartial = buffer.subarray(0, bytesRead).toString()
    module[file] = handlebars.precompile(currentPartial)
}

// Close the opened file.
filesystem.close(fd, function (err) {

How does handlebars.precompile work?

handlebars.precompile is a function in the Handlebars.js library that takes a Handlebars template as input and returns a JavaScript function that can be used to render the template.

The handlebars.precompile function first parses the Handlebars template to generate an abstract syntax tree (AST) representation of the template. It then generates a JavaScript function that, when executed, will use this AST to render the template.

The generated function takes a context object as input and returns the rendered output as a string. The context object contains the data that will be used to populate the template.

To use the compiled template function, you simply need to call it with a context object containing the data you want to render:

javascript
const source = "<div>{{name}} is {{age}} years old.</div>";
const template = Handlebars.compile(source);
const context = { name: "John", age: 30 };
const output = template(context);
console.log(output);
// Output: "<div>John is 30 years old.</div>"

In this example, we use handlebars.compile to generate a template function from a Handlebars template string. We then create a context object with data to populate the template and pass it to the template function to generate the final output.

By using handlebars.precompile to generate a compiled template function, we can avoid the overhead of parsing and compiling the template every time it is rendered, which can improve performance in applications that use Handlebars templates extensively.

main.js

GitHub: bernardod/fe-test

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  }
};


function precompile(input, options, env) {
  if (input == null || typeof input !== 'string' && input.type !== 'Program') {
    throw new _exception2['default']('You must pass a string or Handlebars AST to Handlebars.precompile. You passed ' + input);
  }


  options = options || {};
  if (!('data' in options)) {

index.js

GitHub: mrNote23/middle.messenger.praktikum.yandex

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const Handlebars = require("handlebars");


const transformer = new Transformer({
  async transform({ asset }) {
    const content = await asset.getCode();
    const precompiled = Handlebars.precompile(content);
    asset.setCode(`
    import Handlebars from 'handlebars';
    import { registerHelpers } from "@hbs-helpers";
    registerHelpers(Handlebars);

+ 2 other calls in file

Ai Example

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const Handlebars = require("handlebars");

const source = "{{name}} is {{age}} years old.";
const template = Handlebars.precompile(source);
console.log(template);
// Output: "function (Handlebars,depth0,helpers,partials,data) {...}"

In this example, we use handlebars.precompile to generate a compiled template function from a Handlebars template string. We pass the template string to handlebars.precompile, which returns a JavaScript function as a string. The generated function takes several arguments, including a reference to the Handlebars runtime, a context object, helper functions, partial templates, and data about the current template execution. These arguments are used by the function to render the template. We can then use this generated function to render the template by including it in our application and calling it with a context object: javascript Copy code

rollup.config.js

GitHub: shanzhangf123/enum-maker-s

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  return null;
},
load: (file) => {
  if (path.extname(file) === '.hbs') {
    const template = fs.readFileSync(file, 'utf8').toString().trim();
    const templateSpec = handlebars.precompile(template, {
      strict: true,
      noEscape: true,
      preventIndent: true,
      knownHelpersOnly: true,

model.system-event-type.js

GitHub: JeffJassky/vimeomarketing

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const validateIsValidHandlebarsTemplate = {
  validator: function(template) {
    console.debug('validating handlebars template');
    try{
      handlebars.precompile(template);
    }catch(e){
      return false
    }
    return true

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