Useful API Functions: Unterschied zwischen den Versionen
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This document lists most useful (and most often needed) functions. |
This document lists most useful (and most often needed) classes and functions. |
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Be aware, that there are many more to be found in either the class references or via the builtin class browser. |
Be aware, that there are many more to be found in either the class references or via the builtin class browser. |
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==== Comparing ==== |
==== Comparing ==== |
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''string1'' = ''string2'' |
''string1'' = ''string2'' |
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::compares case sensitive<br> |
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''string1'' sameAs: ''string2'' |
''string1'' sameAs: ''string2'' |
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::compares case insensitive |
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==== Case Conversion ==== |
==== Case Conversion ==== |
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''aString'' asLowercase |
''aString'' asLowercase |
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<br>''aString'' asUppercase |
<br>''aString'' asUppercase |
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<br>''aString'' asUppercaseFirst |
<br>''aString'' asUppercaseFirst |
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::return a case converted string |
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==== Finding Characters or Substrings ==== |
==== Finding Characters or Substrings ==== |
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''aString'' indexOf: ''aCharacter'' |
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::returns the 1-based index, or 0 if not found.<br> Notice that character constants are denoted as $x in Smalltalk (or "Character return", "Character newline", "Character tab"...) |
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''aString'' |
''aString'' lastIndexOf: ''aCharacter'' |
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''aString'' includes: ''aCharacter'' |
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::returns true if the character is included, false if not |
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Reference: [http://live.exept.de/ClassDoc/classDocOf:,String String] |
Reference: [http://live.exept.de/ClassDoc/classDocOf:,String String] |
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Version vom 25. September 2020, 17:32 Uhr
This document lists most useful (and most often needed) classes and functions. Be aware, that there are many more to be found in either the class references or via the builtin class browser.
Inhaltsverzeichnis
String[Bearbeiten]
All of the following are functional operators; meaning that they do not modify the argument(s).
Comparing[Bearbeiten]
string1 = string2
- compares case sensitive
- compares case sensitive
string1 sameAs: string2
- compares case insensitive
Case Conversion[Bearbeiten]
aString asLowercase
aString asUppercase
aString asUppercaseFirst
- return a case converted string
Finding Characters or Substrings[Bearbeiten]
aString indexOf: aCharacter
- returns the 1-based index, or 0 if not found.
Notice that character constants are denoted as $x in Smalltalk (or "Character return", "Character newline", "Character tab"...)
- returns the 1-based index, or 0 if not found.
aString lastIndexOf: aCharacter
- searching from the end, returns the 1-based index, or 0 if not found.
aString includes: aCharacter
- returns true if the character is included, false if not
Reference: String inherits from: CharacterArray and SequenceableCollection and Collection
Collection[Bearbeiten]
Reference: Collection
Filename[Bearbeiten]
Reference: Filename
Stream[Bearbeiten]
Reference: Stream
Number[Bearbeiten]
Reference: Number and its subclasses Integer, Float, Fraction, Complex
