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prototype for filter in javascript

Awful Aardvark answered on November 23, 2022 Popularity 7/10 Helpfulness 3/10

answer prototype for filter in javascript

related create new metod Filter in js prototype

prototype for filter in javascript

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const data = [1, 2, 3, 4, 5];

Array.prototype.myCustomFilter = function (fn) {
  const filtered = []; // it will receive all values that match to condition passed in fn callback.

  for (let i = 0; i < this.length; i++) {
    if (fn(this[i])) {
      filtered.push(this[i]);
    }
  }

  return filtered;
};

const filteredData = data.myCustomFilter(function (el) {
  if (el > 2) return el;
});

// using arrow function
// const filteredData = data.myCustomFilter(el => el > 2);

console.log(filteredData); // output [3,4,5]

Popularity 7/10 Helpfulness 3/10 Language javascript

Source: dev.to

Tags: filter javascript prototype

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Contributed on Nov 23 2022

Awful Aardvark

0 Answers Avg Quality 2/10

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create new metod Filter in js prototype

Comment

Array.prototype.filter = function(callback) {
  const filteredArray = [];
  
  for (let i = 0; i < this.length; i++) {
    if (callback(this[i], i, this)) {
      filteredArray.push(this[i]);
    }
  }
  
  return filteredArray;
};

Popularity 6/10 Helpfulness 3/10 Language javascript

Source: chat.openai.com

Tags: javascript filter prototype fi

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Contributed on Jun 17 2023

Akbarxon Mansurov

0 Answers Avg Quality 2/10

prototype for filter in javascript

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prototype for filter in javascript

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create new metod Filter in js prototype

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