javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);javascript reduce
var array = [36, 25, 6, 15];
array.reduce(function(accumulator, currentValue) {
return accumulator + currentValue;
}, 0); // 36 + 25 + 6 + 15 = 82reduce javascript
let sum = arr.reduce((curr, index) => curr + index);js reduce
let newArray = array.reduce( (acc, element, index, originalArray) => {
// return acc += element
}, initialValue)reduce javascript
function reduce(array, func, seed) {
let previousResult;
if (seed === undefined) {
previousResult = array[0];
for (let i = 1; i < array.length; i++) {
previousResult = func(previousResult, array[i], i, array);
}
console.log(previousResult);
} else {
previousResult = seed;
each(array, function(e, i, a) {
previousResult = func(previousResult, e, i, array);
});
}
return previousResult;
};javascript reduce()
const developers = [
{
name: "Eliza",
experience: 7,
role: "manager"
},
{
name: "Manuel",
experience: 2,
role: "developer"
},
{
name: "Kim",
experience: 5,
role: "developer"
}
];
function calculateAverage(total, years, index, array) {
total += years;
return index === array.length-1 ? total/array.length: total
}
const average = developers.map(dev => dev.experience).reduce(calculateAverage);Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
