cfdocs

arrayInsertAt

Inserts a value at the specified position in the array. If the element is inserted before the end of the array, ColdFusion shifts the positions of all elements with a higher index to make room.

arrayInsertAt(array, position, value)
returns boolean

Member Function Syntax

someArray.insertAt(position, value)

Argument Reference

Name Type Required Default Description
array array Yes   The array which will have the new element inserted.
position numeric Yes   The numerical index in the array where the new element will be inserted.
Must be less than or equal to the length of the array.
Remember ColdFusion arrays start at 1 not 0.
value any Yes   The new element to insert.

Insert an Item in an Array at Position 2

Inserts the number 4 at position 2

someArray = [1,2,3];
arrayInsertAt(someArray, 2, 4);
writeOutput(serializeJSON(someArray));

Expected Result: [1,4,2,3]