CODEWITHSUNDEEP
javascriptnode.js
Sidharth
Sidharth

Reputation: 1925

Javascript prototype across classes and files

I am creating a nodejs app, where i have defined classes in separate files. I have written a prototype for Array which i need to be accessed across all the classes how would i implement it, i tried defining the prototype in the main file of the project but i still cant use the prototype in all the classes.

for example

My prototype

Array.prototype.remove = function(e) {
    for (var i = 0; i < this.length; i++) {
        if (e == this[i]) { return this.splice(i, 1); }
    }
};

My project structure

--main.js
--a.js
--b.js

i have my main.js where i require all other js

all the files use the prototype

Upvotes: 2

Views: 1703

Answers (1)

Jaffer
Jaffer

Reputation: 2968

If the other files are different modules then, it runs in its own JS context, Best way is to create a module, which will add your example function to the Array.prototype then from each module, call this function using require.

create a module file named extendModule.js and in that add 

exports.extendModule = function(constructor) {
    constructor.prototype.example = function () {};
}

every other module which needs to extend Array.prototype

require("./extendModule").extendModule(Array)

Upvotes: 4

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