- Why do we use three dots?
- What does 3 dots mean in typescript?
- What is JSX?
- What is an example of class?
- What does => mean in jQuery?
Execution context means here is how the function is called..
!= accept 1 as equals of true, null as equals of false and some others (because the values are automatically casted when being compared). !== accept only “real” equalities (i.e. compares both the value and the type).
Why do we use three dots?
The ellipsis …, . . ., or (in Unicode) …, also known informally as dot-dot-dot, is a series of (usually three) dots that indicates an intentional omission of a word, sentence, or whole section from a text without altering its original meaning.
What does 3 dots mean in typescript?
spread operatorThe three dots are known as the spread operator from Typescript (also from ES7). The spread operator return all elements of an array.
When a function is used as a constructor (with the new keyword), its this is bound to the new object being constructed. While the default for a constructor is to return the object referenced by this , it can instead return some other object (if the return value isn’t an object, then the this object is returned).
What is JSX?
What is an example of class?
Definition: A class is a blueprint that defines the variables and the methods common to all objects of a certain kind. The class for our bicycle example would declare the instance variables necessary to contain the current gear, the current cadence, and so on, for each bicycle object.
What does => mean in jQuery?
A dollar sign to define jQuery. A (selector) to “query (or find)” HTML elements.
call and apply are very similar—they invoke a function with a specified this context, and optional arguments. The only difference between call and apply is that call requires the arguments to be passed in one-by-one, and apply takes the arguments as an array.