use reduce for calculate array of number and operator in javascript code example

Example 1: total array with function

console.log(
  [1, 2, 3, 4].reduce((a, b) => a + b, 0)
)
console.log(
  [].reduce((a, b) => a + b, 0)
)

Example 2: javascript, reduce

const myReduce = myArray.reduce((acc, item) => {
	acc += item
})