How to utilize regular expressions in JavaScript without the need to instantiate a regex object

Here is a code snippet that checks a URL for a specific pattern:

var url = "https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=regex%20javascript";
var patt = new RegExp('https?:\/\/[^/]+\.google\.[a-z.]+\/((search[?#])|(webhp[?#])|([?#])).*q=');
var check = patt.test(url);
alert(check);

The regex used above requires the use of new RegExp(). How can I achieve the same result without creating a new regex object? For example, I attempted the following code (which turned out to be incorrect):

var url = "https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=regex%20javascript";
var check = ('https?:\/\/[^/]+\.google\.[a-z.]+\/((search[?#])|(webhp[?#])|([?#])).*q=').test(url);
alert(check);

Answer №1

Are you referring to a regex literal written like this?

var check = /https?:\/\/[^/]+\.google\.[a-z.]+\/((search[?#])|(webhp[?#])|([?#])).*q=/.test(url)  

Keep in mind that this is just syntactic sugar and does not eliminate the need to create actual RegEx objects.

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