Reveal the class to the global scope in TypeScript

ClassExample.ts:

  export class ClassExample{
      constructor(){} 

    }

index.html:

<script src="ClassExample.js"></<script> // compiled to es5
<script>
  var classExample = new ClassExample(); //ClassExample is not defined
</script>

Since I am using es5, I am unable to use import statements.

In regular javascript, you can achieve the following:

(function(global){
    function ClassExample() {

    }
    global.ClassExample = ClassExample;
})(window);

How can I make a typescript class accessible on the window object?

The transpiled js file:

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var ClassExample = /** @class */ (function () {
        function ClassExample() {
        }
        return ClassExample;
    }());
    exports.SomeClass = SomeClass;
});

Answer №1

It appears that you are only partially utilizing modules in your code. To address this issue, consider either removing the export statement to eliminate the use of modules altogether, or fully embrace modules by ensuring consistency (e.g., making your second script a module that imports the class). Currently, it seems like a halfway completed handshake...

For those planning to share their TypeScript library, keep in mind that TypeScript supports modules starting from version 1.8. This means that utilizing modules does not necessarily require users to rely on Webpack or similar tools; for more information, check out this blog post.

If your goal is to allow usage without the need for modules, refrain from incorporating modules into the library.

Answer №2

Let's set up a new instance with the name "yourInstanceName" and assign it to the object SomeClass.

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