Could someone please help me identify the issue with this JavaScript code?
"http://www.imdb.com/title/tt2618986/".match("~http://(?:.*\.|.*)imdb.com/(?:t|T)itle(?:\?|/)(..\d+)~i");
I tested it here https://regex101.com/r/yT7bG4/1 and it worked fine, but not in my JavaScript application.
To create a regular expression in JavaScript, the format is /pattern/flags. An example of this code would be:
"http://www.imdb.com/title/tt2618986/".match(/http:\/\/(?:.*\.|.*)imdb.com\/(?:t|T)itle(?:\?|\/)(..\d+)/i);
It's important to escape all forward slashes (/) within the regular expression so they are treated as part of the expression itself rather than indicating its end. For further information on regular expressions in JavaScript, I recommend checking out this article.
Additionally, you can use https://regex101.com/ with the JavaScript option under the 'FLAVOR' banner on the left side to determine which flags are valid.
It appears that you are currently using the pcre(php) flavor in regex101, but it is recommended to select the javascript flavor instead.
Please note that there is no '~' delimiter in javascript RegExp, which may be why your code is not functioning as expected.
Consider revising your code to something like:
"http://www.imdb.com/title/tt2618986/".match(/http:\/\/(?:.*\.|.*)\.imdb.com\/(?:t|T)itle(?:\?|\/)(..\d+)/i);
If you encounter this situation:
The resulting code with a regular expression would be:
"http://www.imdb.com/title/tt2618986/".match(/http:\/\/(?:.*\.|.*)imdb.com\/title(?:\?|\/)(..\d+)/i)
p.s. Remember to use the 'i' modifier for a case-insensitive search
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