cfdocs

arrayIsDefined

Determines whether an array element is defined in a given index.

arrayIsDefined(array, index)

returns boolean

Member Function Syntax

someArray.isDefined(index)

Argument Reference

Name	Type	Required	Default	Description
array	string	Yes		The array object
index	numeric	Yes		The index to check.

Simple example

CF8+ To check an array element is define or not

someArray = [1,2,3,4,5];
writeOutput(arrayIsDefined(someArray, 3));

Expected Result: Yes

Simple example

Lucee4.5+ To check an array element is define or not

someArray = [1,2,3,4,5];
writeOutput(arrayIsDefined(someArray, 6));

Expected Result: false

Simple example with two dimensional array

CF8+ To check an array element is define or not

FirstArray = [1,2,3];
secondArray = [11,12,13];
combineArray = arrayNew(2);
arrayAppend(combineArray, firstArray);
arrayAppend(combineArray, secondArray);
writeOutput(arrayIsDefined(combineArray, 3));

Expected Result: No

Simple example with two dimensional array

Lucee4.5+ To check an array element is define or not

FirstArray = [1,2,3];
secondArray = [11,12,13];
combineArray = arrayNew(2);
arrayAppend(combineArray, firstArray);
arrayAppend(combineArray, secondArray);
writeOutput(arrayIsDefined(combineArray, 2));

Expected Result: true

This site is open source. Improve this page.