js reduce example
Example 1: reduce javascript
const sum = array.reduce((accumulator, element) => {
return accumulator + element;
}, 0);
const product = array.reduce((accumulator, element) => {
return accumulator * element;
}, 1);
Example 2: javascript reduce
var array = [36, 25, 6, 15];
array.reduce(function(accumulator, currentValue) {
return accumulator + currentValue;
}, 0);
Example 3: js reduce
Sum array elements:
let myArr = [1,2,3,-1,-34,0]
return myArr.reduce((a,b) => a + b,0)
Example 4: javascript reduce function
var numbers = [175, 50, 25];
document.getElementById("demo").innerHTML
= numbers.reduce(myFunc);
function myFunc(total, num) {
return total - num;
}
Example 5: reduce()
const array1 = [1, 2, 3, 4];
const reducer = (accumulator, currentValue) => accumulator + currentValue;
console.log(array1.reduce(reducer));
console.log(array1.reduce(reducer, 5));
Example 6: reduce javascript
const sum = array.reduce((accumulator, element[, idx[, sourceArray]]) => {
return accumulator + idx * 2 + element
}, 0);