<num_var> += <number>
Operators: Add to Variable "+=" Operators: Add "+"Add numeric Glossary: Valuevalue to Glossary: Variable, var_refvariable.
Flow control: if … thenIf any of both Vipsi command syntax: Arguments Glossary: Argumentsarguments is a Data Types: Text Item selector "[]": Text Glossary: text, text_valtext, Flow control: if … then Flow control: try … thenthen it is evaluated as Glossary: number, num_valnumber. Flow control: if … then Flow control: if … thenIf the conversion fails Flow control: if … then Flow control: try … thenthen an error is generated.
Flow control: if … thenIf any of both is a Data Types: Lists and arrays Item selector "[]": Lists Glossary: list, list_vallist, Flow control: if … then Flow control: try … thenthen Flow control: if … then Flow control: try … thenthe operation is performed on all items. Recursively.
e.g.:
vipsi> Instructions: var How does VScript::Value() work?: Var*&var a=20, b
vipsi> b = a += 33
vipsi> Instructions: putput a, ",", b 53,53
vipsi> a += {1,"2",3} = { 54, 55, 56 }
vipsi>
Operators: Bitwise Not "~" Operators: Boolean Negation "!"Note: Operators: Assignment "=" Built-in operators: Assignments:Assignment Vipsi command syntax: Operators Operators Glossary: Operatoroperators Flow control: do … loopdo Operators: Bitwise Not "~" Operators: Boolean Negation "!"not Flow control: returnreturn a result Glossary: Valuevalue. There are syntactical ambiguities with Flow control: if … then Flow control: try … thenthe "=" Numeric functions: signsign e.g. in Literals: List literals Lists and arrays: List literalslist literals. List functions: thisThis also allows named items in other places, e.g. passing named Vipsi command syntax: Arguments Glossary: Argumentsarguments to Vipsi command syntax: Procedures Data Types: Procedures Glossary: Procedureprocedures for a obj-C-like syntax. (planned for Flow control: if … then Flow control: try … thenthe future)
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