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
array string Required
The array object
index numeric Required
The index to check.
Examples Sample code invoking the arrayIsDefined function
CF 8+ To check an array element is define or not
someArray = [1,2,3,4,5];
writeOutput(arrayIsDefined(someArray, 3));Expected Result: Yes
Lucee 4.5+ To check an array element is define or not
someArray = [1,2,3,4,5];
writeOutput(arrayIsDefined(someArray, 6));Expected Result: false
CF 8+ 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
Lucee 4.5+ 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
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