Revision as of 14:34, 25 December 2020 edit Afitterling (talk \| contribs) 2 edits const in Javascript does not mean constant. As the variable is still mutable for complex types. Tags: Reverted Visual edit ← Previous edit		Revision as of 14:41, 25 December 2020 edit undo Rqndom (talk \| contribs) Extended confirmed users 1,105 edits Reverted good faith edits by Afitterling (talk): This is already mentioned in section 'Other languages' (does not need to be in the lead section) Tags: Twinkle Undo Next edit →
Line 1: {{short description\|Type qualifier}} {{lowercase title}} In the [[C (programming language)\|C]], [[C++]], [[D (programming language)\|D]], [[JavaScript]] and [[Julia (programming language)\|Julia]] [[programming language]]s, '''const''' is a [[type qualifier]]:{{efn\|In D the term ''type constructor'' is used instead of ''type qualifier,'' by analogy with [[Constructor (object-oriented programming)\|constructors in object-oriented programming]].}} a [[Keyword (computer programming)\|keyword]] applied to a [[data type]] that indicates that the data is read only~~. (As for Javascript, Lists or Objects are still mutable but cannot be redefined)~~. While this can be used to declare [[Constant (computer programming)\|constants]], <code>const</code> in the C family of languages differs from similar constructs in other languages in being part of the ''type,'' and thus has complicated behavior when combined with [[Pointer (computer programming)\|pointers]], references, [[composite data type]]s, and type-checking. == Introduction ==

Const (computer programming): Difference between revisions