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12 changes: 12 additions & 0 deletions index.html
Original file line number Diff line number Diff line change
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script src="practice.js"></script>
</body>
</html>
80 changes: 80 additions & 0 deletions practice.js
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const foods = ["pizza", "burger", "fingerChips", "donuts", "springRoll"];
var modifiedFood = foods.slice(1,4)
console.log(modifiedFood);
modifiedFood = foods
modifiedFood.splice(2, 0, "noodles", "icecream")
console.log(modifiedFood);

const numberArray = [12,324,213,4,2,3,45,4234];


function isEven(arr){
evenNumArray = arr.filter((number)=>{
return number%2 == 0;
})
return evenNumArray;
}

console.log(isEven(numberArray));

function isPrime(arr){
primeNumArray = arr.filter((number)=>{
var flag = true;
for(var i = 2; i < number -1; i++){
if(number%i == 0) flag = false;
break;
}
if(flag) return number;
})
return primeNumArray;
}

console.log(isPrime(numberArray));

function notPrime(arr){
primeNumArray = arr.filter((number)=>{
for(var i = 2; i < number -1; i++){
if(number%i == 0) return number;
break;
}
})
return primeNumArray;
}

console.log(notPrime(numberArray))

isEven = (arr)=>{
evenNumArray = arr.filter((number)=>{
return number%2 == 0;
})
return evenNumArray;
}

console.log(isEven(numberArray))

const myArray = [11, 34, 20, 5, 53, 16];

function findSquareOfNumbers(arr){
return arr.map(item=>{
return item**2;
})
}

console.log(findSquareOfNumbers(myArray))
const myArray1 = [2, 3, 5, 10];

function multiply(arr){
var result = 1;
arr.map(item=>{
return result * item;
})
return result;
}

console.log(multiply(myArray1))

function multiply(arr){
return arr.reduce((result, item)=>{return result * item; }, 1);
}

console.log(multiply(myArray1))