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The encodeURI is used to encode a Uniform Resource Identifier (URI) by replacing each instance of certain characters by one, two or three escape sequences representing the UTF-8 encoding of the character.
Sometimes it is required to compare the value of one variable with other. The comparison operators take simple values (numbers or string) as arguments and evaluate either true or false. Here is a list of comparison operators.
The round() method of math object is used to get the value of a number rounded to the nearest integer. If the fractional part of the number is greater than or equal to .5, the argument is rounded to the next higher integer. If the fractional part of number is less than .5, the argument is rounded to the next lower integer.
It is very important to validate the data supplied by user through a form, before you process it. Among various kind of data validation, validation of date is one.
When a browser opens a web page, the browser reads the cookies (provided it has already stored it) that has stored in your machine. We used document.cookie to retrieve the information about the cookie.
Reading and Deleting cookies.
Deleting a cookie is extremely easy. To delete a cookie first accept the name of the cookie and create a cookie with the same name and set expiry date one day ago from the current date.