How to get query string in JavaScript HTML

Query string a great way of passing parameter values from one page to another. Here is an example to see how it is used in JavaScript.

The query string value can be seen at the end of the page in this format - ?name=Code2Care.

Consider that the page URL is

where query string is name=Code2Care (name is parameter name & Code2Care is the parameter value)

Below is an example to Set and Get the query string using JavaScript.

Code Snippet: Get query string: (this gets everything starting from ?, including the ?)
var query =;