Core Function isControl
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(Created page with "<pre> isControl( <expression> ) </pre> === Description === Check if string contains only control chars. === Parameters === ==== expression ==== The string to evaluate. === ...")
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(Created page with "<pre> isControl( <expression> ) </pre> === Description === Check if string contains only control chars. === Parameters === ==== expression ==== The string to evaluate. === ...")
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Revision as of 09:00, 28 January 2013
isControl( <expression> )
Contents |
Description
Check if string contains only control chars.
Parameters
expression
The string to evaluate.
Return Value
Success: Returns 1 if expression is empty.
Failure: Returns 0 if expression is not empty.
Example
Will return 1;
$result = isControl("\t"); Println("Result:" , $result);
Will return 0;
$result = isControl("A"); Println("Result:" , $result);
