What are JavaScript Cookies?
Cookies are the small test files stored in a computer, and they get created when the user visits the websites to store information that they need. Examples could be User Name…
What are escape characters?
Escape characters (Backslash) is used when working with special characters like single quotes, double quotes, apostrophes, and ampersands. Place backslash before the characters to make it display. Example: document. write…
What is the difference between an alert box and a confirmation box?
An alert box displays only one button, which is the OK button. But a Confirmation box displays two buttons, namely OK and cancel.
What is the data type of variables in JavaScript?
All variables in JavaScript are object data types.
How can a page be forced to load another page in JavaScript?
The following code has to be inserted to achieve the desired effect: <script language="JavaScript" type="text/javascript" > <!-- location. href="https://www.google.com/"; //--></script>
What is the use of Void (0)?
Void(0) is used to prevent the page from refreshing, and parameter “zero” is passed while calling. Void(0) is used to call another method without refreshing the page.
What are all the types of Pop up boxes available in JavaScript?
Alert Confirm and Prompt
What is an undefined value in JavaScript?
Undefined value means the Variable used in the code doesn’t exist Variable is not assigned to any value Property does not exist.
What is the function of the delete operator?
The delete keyword is used to delete the property as well as its value. Example var student= {age:20, batch:"ABC"}; Delete student. age;
What do you mean by NULL in Javascript?
The NULL value is used to represent no value or no object. It implies no object or null string, no valid boolean value, no number, and no array object.