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reduce javascript

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Rick Oburu answered on May 21, 2020 Popularity 10/10 Helpfulness 4/10

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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 reduce

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Contributed on Jul 05 2022

Rick Oburu

0 Answers Avg Quality 2/10

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javascript reduce

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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

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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

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Contributed on Dec 21 2022

Jozvan

0 Answers Avg Quality 2/10

js reduce

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// 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

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Contributed on Jul 21 2021

Suman Majhi

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

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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

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Tags: javascript j

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Contributed on Mar 03 2022

Zidane (Vi Ly - VietNam)

0 Answers Avg Quality 2/10

reduce in js

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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

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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

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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

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Contributed on Dec 27 2020

Encouraging Earthworm

0 Answers Avg Quality 2/10

javascript reduce

Comment

[3, 2.1, 5, 8].reduce((total, number) => total + number, 0)

// loop 1: 0 + 3
// loop 2: 3 + 2.1
// loop 3: 5.1 + 5
// loop 4: 10.1 + 8
// returns 18.1

Popularity 10/10 Helpfulness 3/10 Language typescript

Source: dev.to

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Contributed on Aug 10 2021

Troubled Tiger

0 Answers Avg Quality 2/10

reduce javascript

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