User Guide : Using Content Extraction Language : Language Syntax and Examples : = =
 
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= =
as in "variable == expression".
The is equal to ( == ) comparison operator is used in comparison expressions. This example returns true if the expression evaluates to the same value assigned to the variable, false otherwise. The comparison is numeric unless both sides evaluate as strings. For more information, see Comparison Expressions.
Example
if ( ctr > limit ) catchup on; # Counter over limit means time to execute the CATCHUP
# pattern-action block