We Keep Coding

How to "black list" pages with a query string parameter

I am using cookieconsent.js to show a popup for users to accept for my website. I need to stop the cookie consent popup from showing if a page has a certain query string.
The documentation for cookieconsent provides a solution to "blacklistPage" where I can "Specify pages using string or RegExp" that I want to prevent the popup from showing on.
This is fine until I try to use regex for a query string.
Example of path, filename and query string to match:
/sub-folder/file-name.shtml?value=pair
"blacklistPage": [
"/.*\?value=pair"
]

According to the documentation it's expecting either regex or a string but you're trying to pass regex in a string which isn't valid.
using a string : ‘/index.html’ (matches ‘/index.html’ exactly)
using RegExp : /\/page_[\d]+.html/ (matched ‘/page_1.html’ and ‘/page_2.html’ etc)
Additionally you're quoting the blacklistPage, this doesn't need to be quoted.
By removing the quotes and provide a standard JS regex format you can make the following:
blacklistPage: [
/\/.*\?value=pair/
]
Alternatively your use case is simple so you could just use a string and avoid regex:
blacklistPage: [
'/sub-folder/file-name.shtml?value=pair'
]

I have come to the conclusion, along with a friend who knows js much better than I, that the cookieconsent.js script will not allow query strings.

How to push certain strings from an huge string into array

This might sound weird, but i want to parse a xml response by pushing certain string with following regular expression:
data-href="[\d\w\/:\.\=]*[">]?
into an array.
The reason for this is just for testing. A friend has built a webpage with jimdo where he displays a image gallery. now i want to try parsing the xml on this site and only fetch the images which are at every data-href tag and use them in my react native app.
Any ideas?

Why not just use the String.match method?
var matches = xml_str.match(/data-href="[\d\w\/:\.\=]*[">]?/g);
Edit: if you want to just get the URL within the href, use regex capture groups:
var matches = xml_str.match(/data-href="([\d\w\/:\.\=]*)[">]?/g);
console.log(matches);
You can then map the matches array to only contain the element with the URL.

Match everything after word using only regex

I'm trying to set up a ShareX custom engine, and after the upload I'm given the full url, for instance http://foo.com/HF139hR and I can work that string with regex before copying it to clipboard. What I want to do is to get only the last part of the url, HF139hR so I can throw it into another url, say http://foo.com/?viewer=HF139hR. So far I was using the expression\w+$ to grab it but sometimes I can get an upload error, and that will also get the last word of the error message and pass it to ?viewer=.
Doing my research I found \bfoo.com\/\K\S+, which is exactly what I want, but unfortunately it is not supported on javascript.

\bfoo.com/\K\S+
\bfoo.com\/(\S+)
You can use a similar one and grab the group 1 or capture 1

You can use this Regex: /\/(\w+)(\?+.*)*$/ and get the capturing group between (), this will avoid the part of the upload error which starts with ? like in the example `?viewer=$1$, you can try it here:
var url="http://foo.com/HF139hR?=viewer=$1$";
var reg=/\/(\w+)(\?+.*)*$/;
alert(url.match(reg)[1]);
And if you use only the url="http://foo.com/HF139hR" as a url it will also match the same thing.
And you can take a look at this Regex DEMO where you can see the match information.

How to replace Javascript multiline comments with text in middle using regex

I am trying to replace a two multiline comments (on a single line) with javascript text in the middle. I am using a build tool, which reads the entire file, and need to replace a specific string (made up of comments) during the build.
Example:
var data = /*testThisDelete:start*/new Date();/*testThisDelete:end*/
Once replaced, should used like this
var data = 4.6.88

Try something like this to get started:
"your file as a string".replace(new RegExp('/\*testThisDelete\:start.*testThisDelete\:end\*/','m'), '"replacement text"');
See this post for a lot of useful additional info: JavaScript replace/regex

Are you looking for:
^.+?(\/\*testThisDelete:start\*\/.+?\/\*testThisDelete:end\*\/)$
With this you should just be able to replace the first matched substring with what you want.

Find Replace Short Part of URL using Javascript

Assume I have the following URL stored in variable called content:
http://www.example.com/watch?v=4444444&feature=related
Problem:
I need to replace watch?v= with embed/
I need to erase whatever comes after &
The final output would look like:
http://www.example.com/embed/4444444
I tried these two steps but didn't work:
content = content.replace('/watch?v=/', 'embed/');
content = content.replace('&*/g','');
The URL in page source code appears as:
http://www.example.com/watch?v=4444444&feature=related

You have many errors:
You are using a regular expression when you only need a string.
You are writing your regular expressions as strings.
To write 'match any characters' you need to write '.*', not just '*'. The star modifies the previous token.
There is no need to use the g flag here.
Try this instead:
content = content.replace('watch?v=', 'embed/').replace(/&.*/, '');