reduce parameters
The reduce method in JavaScript takes four parameters:
1. Accumulator
2. Current Value
3. Current Index
4. Source Array
### Example
reduce((accumulator, currentValue, index, array) => { ... }, initialValue)reduce parameters
The reduce method in JavaScript takes four parameters:
1. Accumulator
2. Current Value
3. Current Index
4. Source Array
### Example
reduce((accumulator, currentValue, index, array) => { ... }, initialValue)reduce()
const array1 = [1, 2, 3, 4];
const reducer = (accumulator, currentValue) => accumulator + currentValue;
// 1 + 2 + 3 + 4
console.log(array1.reduce(reducer));
// expected output: 10
// 5 + 1 + 2 + 3 + 4
console.log(array1.reduce(reducer, 5));
// expected output: 15Copyright © 2021 Codeinu
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