len

Determines the length of a string or binary object

len(Object) → returns numeric

Argument Reference

A string or variable name

To get the total length of the string or binary object

someString = 'ColdFusion';
writeOutput(len(someString));

Expected Result: 10

For CF 11+ Lucee 4.5+

colorArray = ['Green','red','blue'];
writeOutput(colorArray.len());

Expected Result: 3

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