The issue of `function.prototype` not functioning correctly when used alongside `module

Question

The issue of `function.prototype` not functioning correctly when used alongside `module

I have a file that contains a current function implementation

function bar(){
  /*Code goes here*/
}

bar.prototype.method = function(param){
  /*Some code*/
  return this
}

module.exports = bar

In the test file, I encountered some issues,

let y = require('File path');

y.method(param) /*An error is thrown because it's not defined*/ 
y.prototype.method(param)/* works fine */


/*I also attempted to*/

let object = y();

I am working on creating an npm package and typing the prototype each time is inconvenient. How can I resolve this issue?

javascript class npm module node-modules

Answer 1

Answer №1

To properly implement foo.js, follow the example below:

function foo() {
    /*Define members here*/
}

foo.prototype.func = function (param) {
    /*Include logic here*/
    console.log(param);
}

module.exports = foo;

Your usage file should look like this:

var foo = require('./foo');

var instance = new foo(); //<---take note of this line

console.log(instance.func("hello"));

Answer 2

To properly implement foo.js, follow the example below:

function foo() {
    /*Define members here*/
}

foo.prototype.func = function (param) {
    /*Include logic here*/
    console.log(param);
}

module.exports = foo;

Your usage file should look like this:

var foo = require('./foo');

var instance = new foo(); //<---take note of this line

console.log(instance.func("hello"));

The issue of `function.prototype` not functioning correctly when used alongside `module

Answer №1

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