This function iterates over every element of the array and calls the closure to work on that element. It will reduce the array to a single value, from the right to the left, and return it.
NOTE:This function is not available in Lucee 5.x or lower. Potentially use reverse() instead.
arrayReduceRight(array, function(result, item [,index, [array]]){} [, initialValue])
returns any
someArray.reduceRight(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 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. | item | any | No | The value for the current iteration’s item. | index | numeric | No | The current index for the iteration | array | array | No | A reference of the original array
Demonstrate how the function works from right to left.
myArray=["a","b","c","d"];
newArray=arrayReduceRight(myArray,function(prev,next,idx,arr){ return prev & next & idx },"");
writedump(newArray);