StringFreeQ

Available

Tests whether a string does NOT contain a substring.

Forms

StringFreeQ["string", patt]

StringFreeQ["string", {patt1, patt2, …}]

StringFreeQ[{"string1", "string2", …}, patt]

StringFreeQ[patt]

Verified examplesStringFreeQ["Hello world", "moon"] → True StringFreeQ["Hello world", "world"] → FalseOptions

IgnoreCase — default False

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Topics

Biomolecular Sequences - Bio Sequences as Strings
Pattern Matching Functions - Patterns for Part Specifications
String Operations - Character-Oriented Operations»
Testing Expressions - String Tests »

Related

StringContainsQ StringCount StringCases StringPosition StringMatchQ FreeQ StringStartsQ StringEndsQ StringDelete StringExpression RegularExpression StringDrop

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