forEach Array Method | forEach Array Method in js | JavaScript Tutorial

Опубликовано: 06 Ноябрь 2022
на канале: Azhar Techno Coder

212

forEach Array Method | forEach Array Method in js | JavaScript Tutorial

Code:
const num = [1,2,3,4,5,6,7,8,9,10,55]
//num.forEach();

//Scenario 1:
num.forEach(arrayCallBack);

function arrayCallBack(item,index,arr){
console.log("num["+index+"] = "+item)
}

//Scenario 2:
num.forEach((item,index)={
console.log("num["+index+"] = "+item)
});

//Sceanrio 3:
let sum = 0
num.forEach((item)={
sum +=item
});
console.log("The count is "+sum)

//Scenario 4
const w = ['a','b','g','w','a','g']
let countObj = {}
w.forEach(item={
if(countObj[item]) {
countObj[item]++;
}else{
countObj[item] = 1
}
})

console.log(countObj)

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