In Javascript, ellipses ( … ) are used for two separate shorthands — rest syntax and spread syntax . Rest syntax will set the remaining elements of a collection to a defined variable.
Read moreWhat does 3 dots in JavaScript mean?
(three dots in JavaScript) is called the Spread Syntax or Spread Operator . This allows an iterable such as an array expression or string to be expanded or an object expression to be expanded wherever placed. This is not specific to React. It is a JavaScript operator.31 May 2017
Read moreWhat is a spread attribute?
Spread attributes is a JSX feature, it’s a syntax for passing all of an object’s properties as JSX attributes.
Read moreWhy do we spread props?
Spread attributes can be useful but they also make it easy to pass unnecessary props to components that don’t care about them or to pass invalid HTML attributes to the DOM . We recommend using this syntax sparingly.
Read moreWhat does a dot mean in JavaScript?
The dot notation is used to access the object properties in JavaScript.
Read moreWhat do three dots mean in React?
The three dots (…) notation referred to as the Spread syntax has been part of React for a long time when it could be used via transpilation, although, it has been made a part of JavaScript as part of the ES2015 syntax.
Read moreWhat do 3 dots mean in JavaScript?
Rest operator . When used within the signature of a function, where the function’s arguments should be, either replacing the arguments completely or alongside the function’s arguments, the three dots are also called the rest operator.
Read more