Javascript Meaning Of Dot

You can access properties on an object by specifying the name of the object followed by a dot period followed by the property name.

Javascript meaning of dot. Below is my attempt to explain what do the three dots do in javascript. When you do this you must include the name of the object. Javascript uses the dot syntax to separate the name of the object from its properties and methods.

Below is my attempt to explain what do the three dots do in javascript. Added more explicit usage of array prototype slice call arguments. In javascript you refer to the methods and properties of an object using the dot syntax.

When three dots is at the end of function parameters it s rest parameters and gathers the rest of the list of arguments into an array. The one you already used a few times is. 5 2 the dot syntax.

Properties can t start with a number. When three dots occurs in a function call or alike it s called a spread operator and expands an array into a list. This is the syntax.

Thanks gabriel for commenting and providing feedback. When working with dot notation property identifies can only be alphanumeric and and. This is an example of dot notation.