Useful API Functions

String

Reference: String Class Documentation
CharacterArray (superclass)
Collection (superclass)

Copying

Notice: except when written otherwise, all indices are 1-based. Valid indices range from 1 to the string's size.

copyFrom:to:

aString copyFrom:startIndex to:endIndex

aString.copyFrom_to(startIndex, endIndex) [JS]

Example:

 'hello world' copyFrom:1 to:5. 
 => 'hello'

copyFrom:count:

aString copyFrom:startIndex count:numChars

aString.copyFrom_count(startIndex, numChars) [JS]

Example:

 'hello world' copyFrom:7 count:3. 
 => 'wor'

copyFrom:

Copies from the given index to the end.

aString copyFrom:startIndex'

aString.copyFrom(startIndex) [JS]

Example:

 'hello world' copyFrom:6. 
 => ' world'

copyTo:

Copies from the start to the given index.

aString copyTo:endIndex

aString.copyTo(endIndex) [JS]

Example:

 'hello world' copyTo:6. 
 => 'hello '

copyBetween:and:caseSensitive:

Finds two substrings and copies the part between them.

aString copyBetween:leftString and:rightString caseSensitive:boolean

aString.copyBetween_and_caseSensitive(leftString, rightString, boolean) [JS]

Example:

 'hello small world' copyBetween:'hello' and:'world' caseSensitive:true
 => ' small '

 'helloworld' copyBetween:'hello' and:'world' caseSensitive:true
 => 

 'hello small World' copyBetween:'hello' and:'world' caseSensitive:true
 => nil

 'hello small World' copyBetween:'hello' and:'world' caseSensitive:false
 => ' small '

copyReplaceString:withString:

aString copyReplaceString:oldString withString:newString

aString.copyReplaceString_withString(oldString, newString) [JS]

Example:

 'hello small world' copyReplaceString:'small' withString:'big' 
 => ' hello big world '

 'hello small world' copyReplaceString:'big' withString:'bigger' 
 => ' hello small world '

Concatenation

, (comma)

string1 , string2

string1 + string2 [JS]

Example:

 'hello', ' ' , 'world'
 => 'hello world'

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