json.removeFirst
json.removeFirst() Function
• Introduced in version 1.4.0.3
Usage
json.removeFirst(array1, array2)Parameters
array1- A JSON array.array2- A JSON array.
Compares the 2nd array with the first array and removes the first element from the first array matching an element in the second.
Examples
[json.removeFirst('[2,2,4,5,6,6,4]', '[2,6]')]Outputs:
[2,4,5,6,4]
Difference between json.removeFirst() and json.difference().
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[h: a2 = '[2,4,6]']
[r: json.difference(a1,a2)]
<!-- a1 has been modified - reset -->
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[r: json.removeFirst(a1,a2)]Outputs:
[1,3,5][1,2,2,3,3,5,6]