javascript reduce method code example
Example 1: how to flatten array with reduce in javascript
let flattened = [[0, 1], [2, 3], [4, 5]].reduce(
function(accumulator, currentValue) {
return accumulator.concat(currentValue)
},
[]
)
Example 2: javascript reduce sum
arrSum = function(arr){ return arr.reduce(function(a,b){ return a + b }, 0);}
Example 3: javascript reduce
var array = [36, 25, 6, 15];
array.reduce(function(accumulator, currentValue) {
return accumulator + currentValue;
}, 0);
Example 4: reduce javascript
const sum = array.reduce((accumulator, element) => {
return accumulator + element;
}, 0);
const product = array.reduce((accumulator, element) => {
return accumulator * element;
}, 1);
Example 5: javascript reduce sum
let nums = [1, 2, 3];
nums.reduce((curr, next) => curr + next);
Example 6: 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);