Encountered an error when attempting to extend the array function: Uncaught TypeError - Object [object Array] does not contain a 'max' method

Question

Encountered an error when attempting to extend the array function: Uncaught TypeError - Object [object Array] does not contain a 'max' method

Hello, I am currently attempting to integrate this function into my code:

Array.getMaximum = function (array) {
    return Math.max.apply(Math, array);
};

Array.getMinimum = function (array) {
    return Math.min.apply(Math, array);
};

This is inspired by the discussion on: JavaScript: min & max Array values?. However, when I try to execute it using:

console.log(myArr.getMax());

where

myArr = [245, 3, 40, 89, 736, 19, 138, 240, 42]

I encounter the following Error:

Uncaught TypeError: Object [object Array] has no method 'getMax'

Could someone assist me with resolving this issue?

javascript

Answer 1

Answer №1

Instead of adding those functions directly to the Array object itself, it is recommended to add them in the prototype.

Array.prototype.max = function () {
...

Array.prototype.min = function () {
...

In order for your program to function correctly, you will need to implement the following changes:

Array.prototype.max = function () {
    return Math.max.apply(null, this);
};

Array.prototype.min = function() {
    return Math.min.apply(null, this);
};

When calling these functions on the current Array object, make sure to use the this variable instead of passing an array as a parameter.

Answer 2

Instead of adding those functions directly to the Array object itself, it is recommended to add them in the prototype.

Array.prototype.max = function () {
...

Array.prototype.min = function () {
...

In order for your program to function correctly, you will need to implement the following changes:

Array.prototype.max = function () {
    return Math.max.apply(null, this);
};

Array.prototype.min = function() {
    return Math.min.apply(null, this);
};

When calling these functions on the current Array object, make sure to use the this variable instead of passing an array as a parameter.

Encountered an error when attempting to extend the array function: Uncaught TypeError - Object [object Array] does not contain a 'max' method

Answer №1

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