reduce syntax javascript code example
Example 1: javascript sum of array
const sum = arr => arr.reduce((a, b) => a + b, 0);
Example 2: reduce javascript
const sum = array.reduce((accumulator, element) => {
return accumulator + element;
}, 0);
const product = array.reduce((accumulator, element) => {
return accumulator * element;
}, 1);
Example 3: javascript sum array values
function getArraySum(a){
var total=0;
for(var i in a) {
total += a[i];
}
return total;
}
var payChecks = [123,155,134, 205, 105];
var weeklyPay= getArraySum(payChecks);
Example 4: syntax of reduce in js
[1,2,3,4,5].reduce((acc, current)=>acc+current, 0)
Example 5: .reduce mdn
arr.reduce(callback( accumulator, currentValue[, index[, array]] )[, initialValue])
Example 6: javascript, reduce
const myReduce = myArray.reduce((acc, item) => {
acc += item
})