json.removeFirst: Difference between revisions

From RPTools Wiki
Jump to navigation Jump to search
mNo edit summary
No edit summary
 
(4 intermediate revisions by 3 users not shown)
Line 8: Line 8:


|usage=
|usage=
<source lang="mtmacro" line>
<syntaxhighlight lang="mtmacro" line>
json.removeFirst(array1, array2)
json.removeFirst(array1, array2)
</source>
</syntaxhighlight>


'''Parameters'''
'''Parameters'''
Line 18: Line 18:
Compares the two arrays and removes the first element from the first array matching an element in the second.
Compares the two arrays and removes the first element from the first array matching an element in the second.


|examples= <source lang="mtmacro" line>
|examples=
<syntaxhighlight lang="mtmacro" line>
[json.removeFirst('[2,2,4,5,6,6,4]', '[2,6]')]
[json.removeFirst('[2,2,4,5,6,6,4]', '[2,6]')]
</source>
</syntaxhighlight>
'''Outputs:
'''Outputs:'''
  [2,4,5,6,4]
<pre> [2,4,5,6,4]</pre>
Difference between {{func|json.removeFirst}} and {{func|json.difference}}.
Difference between {{func|json.removeFirst}} and {{func|json.difference}}.
<source lang="mtmacro" line>
<syntaxhighlight lang="mtmacro" line>
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[h: a2 = '[2,4,6]']
[h: a2 = '[2,4,6]']
Line 31: Line 32:
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[h: a1 = '[1,2,2,2,3,3,4,5,6,6]']
[r: json.removeFirst(a1,a2)]
[r: json.removeFirst(a1,a2)]
</source>
</syntaxhighlight>
'''Outputs:
'''Outputs:'''
  [1,3,5]
<pre> [1,3,5]
[1,2,2,3,3,5,6]
  [1,2,2,3,3,5,6]</pre>
 
|also=
|also=
[[Introduction to JSON Datatypes ]], {{func|json.difference}}
[[Introduction to JSON Datatypes ]], {{func|json.difference}}
[[Category:JSON Function]]
[[Category:JSON Function]]
}}
}}

Latest revision as of 16:40, 15 March 2023

json.removeFirst() Function

Introduced in version 1.4.0.3
Is similar to json.difference() but will only remove the first occurrence of a match.

Usage

json.removeFirst(array1, array2)

Parameters

  • array1 - A JSON array.
  • array2 - A JSON array.

Compares the two arrays 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]

See Also