how to find the sum of all elements in an array in javascript code example

Example 1: javascript sum of array

const sum = arr => arr.reduce((a, b) => a + b, 0);

Example 2: 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 3: sum all the values in an array javascript

array.reduce((a, b) => a + b, 0)

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Javascript Example

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