Function sum

sum<Value, Path>(arr: Value[], path?: Path): number
Returns the sum value of a given path

Example
```
sum([1, 2, 3]); // 6
```
Example
```
sum([{a: 1}, {a: 2}, {a: 3}], 'a'); // 6
```
Example
```
sum([{a: {b: 1}}, {a: {b: 2}}, {a: {b: 3}}], 'a.b'); // 6
```
Type Parameters
- Value
- Path extends string = PathT<Value>
Parameters
- arr: Value[]
- Optional path: Path
Returns number
- Defined in array/sum/index.ts:14

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