freeCodeCamp/curriculum/challenges/arabic/02-javascript-algorithms-and-data-structures/es6/write-higher-order-arrow-functions.arabic.md

id	title	challengeType	videoUrl	localeTitle
587d7b88367417b2b2512b45	Write Higher Order Arrow Functions	1

Description

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Instructions

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Tests

tests:
  - text: ''
    testString: 'getUserInput => assert(getUserInput("index").match(/const\s+squaredIntegers/g), "<code>squaredIntegers</code> should be a constant variable (by using <code>const</code>).");'
  - text: ''
    testString: 'assert(Array.isArray(squaredIntegers), "<code>squaredIntegers</code> should be an <code>array</code>");'
  - text: ''
    testString: 'assert.deepStrictEqual(squaredIntegers, [16, 1764, 36], "<code>squaredIntegers</code> should be <code>[16, 1764, 36]</code>");'
  - text: ''
    testString: 'getUserInput => assert(!getUserInput("index").match(/function/g), "<code>function</code> keyword was not used.");'
  - text: ''
    testString: 'getUserInput => assert(!getUserInput("index").match(/(for)|(while)/g), "loop should not be used");'
  - text: ''
    testString: 'getUserInput => assert(getUserInput("index").match(/map|filter|reduce/g), "<code>map</code>, <code>filter</code>, or <code>reduce</code> should be used");'

Challenge Seed

const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34, -2];
const squareList = (arr) => {
  "use strict";
  // change code below this line
  const squaredIntegers = arr;
  // change code above this line
  return squaredIntegers;
};
// test your code
const squaredIntegers = squareList(realNumberArray);
console.log(squaredIntegers);

Solution

// solution required