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      Verify Existing Values
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      Verify Existing Values

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      Article summary

      These functions check whether a source contains a specific value. The result returned is either true or false (Boolean). Functions that produce a Boolean value are useful for building personalization rules and selections.

      Function

      Description

      ​fn:contains​

      Determines whether a target string contains a specified substring.

      ​fn:containsIgnoreCase​

      Determines whether a target string contains a specified substring, ignoring the case of the target string. It ignores whether the target string text is written in upper or lowercase.

      fn:endsWith

      Tests if a target string ends with the specified substring.

      ​fn:startsWith​

      Tests if a target string starts with the specified substring.

      ​fn:indexOf​

      Returns the index within a string of a specified substring.

      ​ecm:regexMatches​

      Determines whether a specified value matches a given regular expression.

      ecm:regexMatchesIgnoreCase​

      Determines whether a specified value matches a given regular expression. It ignores whether the target string text is written in upper or lowercase.

      ​ecx:isEmptyCouponList​

      Determines whether coupon codes remain in the specified coupon list.

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