reducers in javascript code 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: js reduce
Sum array elements:
let myArr = [1,2,3,-1,-34,0]
return myArr.reduce((a,b) => a + b,0)
Example 3: javascript reduce function
var numbers = [175, 50, 25];
document.getElementById("demo").innerHTML
= numbers.reduce(myFunc);
function myFunc(total, num) {
return total - num;
}
Example 4: reduce javascript
const initialValue = 0;
const numbers = [5, 10, 15];
const reducer = (accumulator, item) => {
return accumulator + item;
};
const total = numbers.reduce(reducer, initialValue)
Example 5: reduce javascript
const sum = array.reduce((accumulator, element[, idx[, sourceArray]]) => {
return accumulator + idx * 2 + element
}, 0);
Example 6: Reduce Method in javascript syntax
array.reduce(function(total, currentValue, currentIndex, arr), initialValue)