javascript reduce index code example

Example 1: javascript reduce

var array = [36, 25, 6, 15];

array.reduce(function(accumulator, currentValue) {
  return accumulator + currentValue;
}, 0); // 36 + 25 + 6 + 15 = 82

Example 2: reduce javascript

let sum = arr.reduce((curr, index) => curr + index);

Example 3: array reduce

arr.reduce(callback( accumulator, currentValue[, index[, array]] ) {
  // return result from executing something for accumulator or currentValue
}[, initialValue]);

Example 4: reduce function javascript

array.reduce(function(acumulador, elementoAtual, indexAtual, arrayOriginal), valorInicial)