ELEMENT.EXISTS()

The ELEMENT.EXISTS() function tests whether an element exists in a data collection.

Format

ELEMENT.EXISTS(var{path})

where

var	is a data collection variable.

path	is the element path to be tested. The {} characters are part of the function syntax.

The ELEMENT.EXISTS() function scans var to test whether element path exists. The function returns True if it is found, False if not.

Example

COL = JPARSE(JSON.STRING)

IF NOT(ELEMENT.EXISTS(COL{'CLIENT', 'AGENT.CODE') THEN

STOP 'Agent code not found'

END

The above code fragment parses a JSON string into a data collection and then checks whether the CLIENT/AGENT.CODE element is present.