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Mathematica > Core Language > Expressions > Testing Expressions >

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Built-in Mathematica Symbol

StringQ

StringQ[expr]
gives True if expr is a string, and False otherwise.

Test whether "123" is a string:

Pick out all strings in a list:

Test whether "123" is a string:

Pick out all strings in a list:

Strings works on strings with internal formatting:

Strings works on any sequence of ordinary and special characters:

All strings have head String:

Use ToString to convert an expression to a string:

Use StringMatchQ to test whether a string pattern match a particular string:

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