Fat comma

Fat comma (also termed hash rocket in Ruby and a fat arrow in JavaScript) refers to the "=>" operator present in some programming languages. It is primarily associated with PHP, Ruby and Perl programming languages, which use it to declare hashes. Using a fat comma to bind key-value pairs in a hash, instead of using a comma, is considered an example of good idiomatic Perl. In CoffeeScript and TypeScript, the fat comma is used to declare a function that is bound to this.

单词	Fat arrow
释义	Fat arrow 英语百科 Fat comma Fat comma (also termed hash rocket in Ruby and a fat arrow in JavaScript) refers to the "`=>`" operator present in some programming languages. It is primarily associated with PHP, Ruby and Perl programming languages, which use it to declare hashes. Using a fat comma to bind key-value pairs in a hash, instead of using a comma, is considered an example of good idiomatic Perl. In CoffeeScript and TypeScript, the fat comma is used to declare a function that is bound to `this`.
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Fat arrow

Fat comma