How to use javascript functions in an Angular 2 component from a different file

Question

I have a javascript file that contains some data manipulation functions (No DOM manipulation at all) such as float rounding, mathematical operations, ...etc

my js fi

Answer 1

Another way is to add your js functions defined in a separate file to a global scope. So in your js file you can add sth like this:

$(document).ready(function() {
    window.example = example;
}

Then in your component typeScript file, right below the imports, you can declare this function:

declare function example(input): void;

And then you can just simply use this function in the component methods.