What is the use of the Push method in JavaScript?
The push method is used to add or append one or more elements to an Array end. Using this method, we can append multiple elements by passing multiple arguments.
What are the different types of errors in JavaScript?
There are three types of errors: Load time errors: Errors that come up when loading a web page, like improper syntax errors, are known as Load time errors and generate…
How to find an operating system in the client machine using JavaScript?
The ‘Navigator. the app version is used to find the operating system’s name in the client machine.
What is variable typing?
Variable typing assigns a number to a variable and then assigns a string to the same variable. An example is as follows: i= 8; i="john";
What is the use of the blur function?
Blur function is used to remove the focus from the specified object.
Which keyword is used to print the text on the screen?
Document. Write (“Welcome”) is used to print the text–Welcome on the screen.
Which keywords are used to handle exceptions?
Try… Catch—finally is used to handle exceptions in the JavaScript Try{ Code } Catch(exp){ Code to throw an exception. } Finally{ Code runs either it finishes successfully or after catch…
What is the use of a type of operator?
‘Typeof’ is an operator used to return a string description of the type of a variable.
How can generic objects be created?
Generic objects can be created as: var I = new object();
What are the two basic groups of data types in JavaScript?
They are as—Primitive Reference types Primitive types are number and Boolean data types. Reference types are more complex types like strings and dates.