Iterates over every entry of the array and calls the closure to work on the elements of the array. This function will reduce the array to a single value and will return the value.
arrayReduce(array, function(result, item [,index, array]){} [, initialValue])
returns any
someArray.reduce(function(result, item [,index, array]){} [, initialValue])
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| array | array | Yes | the input array | |
| callback | any | Yes | Closure or a function reference that will be called for each of the iteration. | |
| initialValue | any | No | Initial value which will be used for the reduce operation. |
| Name | Type | Required | Description | | — | — | — | — | | result | any | No | The result of the reduce operation after the previous iteration | value | any | No | The value for the current iteration | index | numeric | No | The current index for the iteration | array | array | No | A reference of the original array
Sum each a element in the array
complexData = [ {a: 4}, {a: 18}, {a: 51} ];sum = arrayReduce( complexData, function(prev, element){
return prev + element.a;
}, 0 );
writeOutput(sum);