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javascript reduce function array

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Michael Futral answered on May 21, 2020 Popularity 10/10 Helpfulness 2/10

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javascript reduce function array

Comment

let numbers = [1, 2, 3];
let sum = numbers.reduce(function (previousValue, currentValue) {
    return previousValue + currentValue;
});

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: www.javascripttutorial.net

Tags: function javascript reduce

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Contributed on Apr 28 2022

Michael Futral

0 Answers Avg Quality 2/10

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javascript reduce

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175

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

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

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Tags: function functio

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Contributed on Feb 09 2023

Muhammad Rayyan

0 Answers Avg Quality 2/10

Using Array.reduce() method

Comment

// define a reusable function
const calculateSum = (arr) => {
    return arr.reduce((total, current) => {
        return total + current;
    }, 0);
}

// try it
console.log(calculateSum([1, 2, 3, 4, 5]));

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: www.kindacode.com

Tags: javascript j

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Contributed on Aug 29 2022

Lucky Lizard

0 Answers Avg Quality 2/10

JavaScript Array Methods .reduce()

Comment

const list = [1, 2, 3, 4, 5];
console.log(list.reduce((number, nextNumber) => number + nextNumber));
// --> 15

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Source: github.com

Tags: javascript j

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Contributed on May 07 2021

Hilarious Hippopotamus

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 array reduce

Comment

// Arrow function
reduce((previousValue, currentValue) => { /* ... */ } )
reduce((previousValue, currentValue, currentIndex) => { /* ... */ } )
reduce((previousValue, currentValue, currentIndex, array) => { /* ... */ } )
reduce((previousValue, currentValue, currentIndex, array) => { /* ... */ }, initialValue)

// Callback function
reduce(callbackFn)
reduce(callbackFn, initialValue)

// Inline callback function
reduce(function(previousValue, currentValue) { /* ... */ })
reduce(function(previousValue, currentValue, currentIndex) { /* ... */ })
reduce(function(previousValue, currentValue, currentIndex, array) { /* ... */ })
reduce(function(previousValue, currentValue, currentIndex, array) { /* ... */ }, initialValue)

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Source: developer.mozilla.org

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Contributed on Feb 21 2022

Tung

0 Answers Avg Quality 2/10

array reduce

Comment

const values = [4, 3, 2, 1];
console.log("Before reduce");
const sum = values.reduce((accumulator, current) => {
  const result = accumulator + current;
  console.log(
    `accumulator: ${accumulator}, current: ${current}, result: ${result}`
  );
  //accumulator will be used to store the result and will be used in the next iteration
  return result;
});
console.log("After reduce");

// Before reduce
// accumulator: 4, current: 3, result: 7
// accumulator: 7, current: 2, result: 9
// accumulator: 9, current: 1, result: 10
// After reduce

console.log(sum); // => 10

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: koenwoortman.com

Tags: array-reduce array-redu

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Contributed on Jul 17 2023

Bongui

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

Tags: javascript j

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Contributed on Aug 10 2021

Troubled Tiger

0 Answers Avg Quality 2/10

javascript reduce function array

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