mirror of
				https://github.com/qgis/QGIS.git
				synced 2025-11-04 00:04:25 -05:00 
			
		
		
		
	
		
			
				
	
	
		
			20 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			20 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
{
 | 
						|
  "name": "if",
 | 
						|
  "type": "function",
 | 
						|
  "description": "Tests a condition and returns a different result depending on the conditional check.",
 | 
						|
  "arguments": [
 | 
						|
    {"arg":"condition","description":"the condition which should be checked"},
 | 
						|
    {"arg":"result_when_true","description":"the result which will be returned when the condition is true or another value that does not convert to false."},
 | 
						|
    {"arg":"result_when_false","description":"the result which will be returned when the condition is false or another value that converts to false like 0 or ''. NULL will also be converted to false."}
 | 
						|
  ],
 | 
						|
  "examples": [
 | 
						|
    { "expression":"if( 1+1=2, 'Yes', 'No' )", "returns":"'Yes'"},
 | 
						|
    { "expression":"if( 1+1=3, 'Yes', 'No' )", "returns":"'No'"},
 | 
						|
    { "expression":"if( 5 > 3, 1, 0)", "returns":"1"},
 | 
						|
    { "expression":"if( '', 'It is true (not empty)', 'It is false (empty)' )", "returns":"'It is false (empty)'"},
 | 
						|
    { "expression":"if( ' ', 'It is true (not empty)', 'It is false (empty)' )", "returns":"'It is true (not empty)'"},
 | 
						|
    { "expression":"if( 0, 'One', 'Zero' )", "returns":"'Zero'"},
 | 
						|
    { "expression":"if( 10, 'One', 'Zero' )", "returns":"'One'"}
 | 
						|
  ]
 | 
						|
}
 |