Breaking News: Grepper is joining You.com. Read the official announcement!

reduce in js

Add Answer

pabel reja answered on May 21, 2020 Popularity 10/10 Helpfulness 2/10

answer reduce in js

related javascript reduce

related JavaScript Reduce

related js reduce

related reduce javascript

related reduce()

related reduce function in js

related reduce javascript

related reduce in js

related javascript reduce

related js reduce

reduce in js

Comment

reduce in js with a previous accumulator value

var array = [36, 25, 6, 15];

var p=array.reduce(function(accumulator, currentValue,index,arr) {
  return accumulator+=currentValue;
},8); // 36 + 25 + 6 + 15 = 82
 console.log(p);

here accumulator previously accumulate value 8

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript reduce

Link to this answer
Share Copy Link

Contributed on May 19 2023

pabel reja

0 Answers Avg Quality 2/10

Closely Related Answers

javascript reduce

Comment

186

var array = [36, 25, 6, 15];

array.reduce(function(accumulator, currentValue) {
  return accumulator + currentValue;
}, 0); // 36 + 25 + 6 + 15 = 82

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 21 2020

TC5550

0 Answers Avg Quality 2/10

JavaScript Reduce

Comment

const arr = [1, 2, 3]
const result = arr.reduce((acc, curr) => acc + curr, 0)
// 1 + 2 + 3 = 6
console.log(result)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Dec 21 2022

Jozvan

0 Answers Avg Quality 2/10

js reduce

Comment

// syntax: array.reduce(function, accumulator-initial-value)
let array = [3, 7, 2, 9, 5]
const result = array.reduce((accumulator, currentValue, currentIndex, arr) => {
  // code
}, initialValue)

// accumulator = will store return value of the function
// currentValue = iterate through each array element
// currentIndex = index of currentValue
// arr = original array
// initialValue = set accumulator initial value

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jul 21 2021

Suman Majhi

0 Answers Avg Quality 2/10

reduce javascript

Comment

let array = [36, 25, 6, 15];
 
array.reduce((acc, curr) => acc + curr, 0)
// 36 + 25 + 6 + 15 = 82

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jul 05 2022

Rick Oburu

0 Answers Avg Quality 2/10

reduce()

Comment

const array1 = [1, 2, 3, 4];
const reducer = (accumulator, currentValue) => accumulator + currentValue;

// 1 + 2 + 3 + 4
console.log(array1.reduce(reducer));
// expected output: 10

// 5 + 1 + 2 + 3 + 4
console.log(array1.reduce(reducer, 5));
// expected output: 15

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: developer.mozilla.org

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 17 2021

putsan

0 Answers Avg Quality 2/10

reduce function in js

Comment

let arr = [1, 2, 3, 4, 5];
let newArr = arr.reduce((item1,item2) => {
    return item1 + item2;
})

console.log(newArr)
// output 15
// 1+2+3+4+5

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: function functio

Link to this answer
Share Copy Link

Contributed on Feb 09 2023

Muhammad Rayyan

0 Answers Avg Quality 2/10

reduce javascript

Comment

var depthArray = [1, 2, [3, 4], 5, 6, [7, 8, 9]];

depthArray.reduce(function(flatOutput, depthItem) {
    return flatOutput.concat(depthItem);
}, []);

=> [1, 2, 3, 4, 5, 6, 7, 8, 9];


// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce((total, cur) => {return total + cur} )
//  init value = 0 => total = 1500;


// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce(function (total, cur) => {
                   return total + cur
                }, 1 )
// init value = 1 => so when plus all numnber will be result => 1501;

// --------------
const prices = [100, 200, 300, 400, 500];
const total = prices.reduce((total, cur) => total + cur )
// 1500;

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Mar 03 2022

Zidane (Vi Ly - VietNam)

0 Answers Avg Quality 2/10

reduce in js

Comment

Reduce in js

let arr=[5,6,2];
let sum=arr.reduce((accumulator,current,index,arr)=>{
   return accumulator+=current;
});
console.log(sum);//5+6+13

accumulator acumulate(hold) the sum output

reduce methood creat a new array and does not change actual array

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 19 2023

pabel reja

0 Answers Avg Quality 2/10

javascript reduce

Comment

const sum = array.reduce((accumulator, element) => {
  return accumulator + element;
}, 0);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Apr 11 2021

Cooperative Capybara

0 Answers Avg Quality 2/10

js reduce

Comment

Sum array elements:
let myArr = [1,2,3,-1,-34,0]
return myArr.reduce((a,b) => a + b,0)

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Dec 27 2020

Encouraging Earthworm

0 Answers Avg Quality 2/10

reduce in js

Contents

More Related Answers

reduce in js

Closely Related Answers

javascript reduce

JavaScript Reduce

js reduce

reduce javascript

reduce()

reduce function in js

reduce javascript

reduce in js

javascript reduce

js reduce

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.