Scala for the Impatient, Second Edition

Index

Symbols and Numbers

- (minus sign)

in identifiers, 142

operator:

arithmetic, 6

for collections, 178–179

for maps, 49

for type parameters, 271

left-associative, 145

precedence of, 145

unary (negation), 14, 143

-- operator, 177–179

not used for arithmetic decrements, 7

-= operator

arithmetic, 7

for collections, 178–179

for maps, 49

--= operator, 178–179

_ (underscore)

as wildcard:

for XML elements, 236

in case clauses, 30, 198–199, 237

in imports, 8, 76, 85–86

in tuples, 52

for function calls, 158, 288

for function parameters, 161

in identifiers, 142, 317

_* syntax

for arrays, 201

for nested structures, 207

in function parameters, 27

in pattern matching, 237

_=, in setter methods, 57

_1, _2, _3 methods (tuples), 51

; (semicolon)

after statements, ...