Q2671. How do you get the current timestamp in JavaScript?
You can get the current timestamp in JavaScript using the `getTime()` method of the Date object, which returns the number of milliseconds since January 1, 1970, 00:00:00 ...
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Q2672. How do you add or subtract days to a date in JavaScript?
You can add or subtract days to a date in JavaScript using the `setDate()` method of the Date object, which allows you to set the day of the month for a given date. ``` l...
Q2673. What is iterator in JavaScript?
In JavaScript, an iterator is an object that provides a way to access elements of a collection or a custom data structure in a sequential manner. It allows you to loop ov...
Q2674. What is decorator in JavaScript?
In JavaScript, a decorator is a design pattern that allows you to modify the behavior of an object or a function by wrapping it with another function. It provides a way t...
Q2675. What does the variable environment in JavaScript's function execution context contain, and what is its purpose?
The variable environment contains all the variables, function declarations, and function arguments specific to that function. It keeps track of the function's local varia...
Q2676. What is a scope chain in JavaScript's function execution context?
The scope chain is a list of all the variable environments that are accessible to the function. It is used to resolve variable references during the function's execution....
Q2677. What is an anonymous lambda function in JavaScript?
A lambda function, also known as an arrow function in JavaScript, is a concise and shorthand way of defining a function. It uses the => arrow syntax to indicate a functio...
Q2678. What is variable shadowing in JavaScript?
If there is a variable in the global scope, and you'd like to create a variable with the same name in a function. The variable in the inner scope will temporarily shadow ...
Q2679. What is a rest operator in JavaScript?
The rest operator in JavaScript is a special syntax that allows you to pass an indefinite number of arguments to a function. It is represented by three dots ( ... ). ``` ...
Q2680. Why would you use something like the load event? Does this event have disadvantages? Do you know any alternatives, and why would you use those?
The `load` event fires at the end of the document loading process. At this point, all of the objects in the document are in the DOM, and all the images, scripts, links an...