cfdocs

arrayIndexExists

Returns whether there exists an item in the array at the selected index.

arrayIndexExists(array, index)

returns boolean

Member Function Syntax

array.indexExists(index)

Argument Reference

Name	Type	Required	Default	Description
array	array	Yes
index	numeric	Yes

Standard function call when checking for an existing element

In this example, the index we are checking exists in the array so the check returns true.

myArray=[];
myArray[1]='one';
myArray[2]='two';
myArray[3]='three';
myArray[4]='four';
myArray[5]='five';
result = arrayIndexExists(myArray, 3);
writeOutput(result);

Expected Result: true

Standard function call when checking for a nonexisting element

In this example, there is no element at the index we’re checking so the check returns false.

myArray=[];
myArray[1]='one';
myArray[2]='two';
// no element at index 3
myArray[4]='four';
myArray[5]='five';
result = arrayIndexExists(myArray, 3);
writeOutput(result);

Expected Result: false

Standard function call when checking an empty array

In this example, the array we are searching is empty so the check returns false.

myArray=[];
result = arrayIndexExists(myArray, 3);
writeOutput(result);

Expected Result: false

Member function syntax

In this example, the index we are checking exists in the array so the check returns true.

myArray=[];
myArray[1]='one';
myArray[2]='two';
myArray[3]='three';
myArray[4]='four';
myArray[5]='five';
result = myArray.indexExists(3);
writeOutput(result);

Expected Result: true

This site is open source. Improve this page.