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Using regular expressions to parse HTML: why not?
...'>
or
<img src=http://example.com/whatever.jpg>
or
<img border=0 src="http://example.com/whatever.jpg">
or
<img
src="http://example.com/whatever.jpg">
or you start getting false positives from
<!-- // commented out
<img src="http://example.com/outdated.png"...
How can I make an entire HTML form “readonly”?
...ion to just list the 'selected' items, without checkboxes. Like on a pizza order confirmation: just list all the ingredients you selected.
– marc82ch
Feb 20 '15 at 12:53
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JavaScript, Node.js: is Array.forEach asynchronous?
...ensure that the async opeartion is run for only one item at a time (in the order of the collection), you must use eachSeries instead.
– matpop
May 9 '18 at 9:25
...
setting an environment variable in virtualenv
... environment variables is easy through the activate script you sourcing in order to activate the virtualenv.
Run:
nano YOUR_ENV/bin/activate
Add the environment variables to the end of the file like this:
export KEY=VALUE
You can also set a similar hook to unset the environment variable as su...
How to revert initial git commit?
... have already pushed to remote, you will need to force it to the remote in order to overwrite the previous initial commit:
git push --force origin
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Remove blue border from css custom-styled button in Chrome
...ge, and I want custom-styled <button> tags. So with CSS, I said: border: none . Now it works perfectly in safari, but in chrome, when I click one of the buttons, it puts an annoying blue border around it. I thought button:active { outline: none } or button:focus { outline:none } would w...
Can we make unsigned byte in Java
...28). However, there's nothing to stop you downcasting an int (or short) in order to achieve this:
int i = 200; // 0000 0000 0000 0000 0000 0000 1100 1000 (200)
byte b = (byte) 200; // 1100 1000 (-56 by Java specification, 200 by convention)
/*
* Will print a negative int -56 because upcasting byt...
How do I run a shell script without using “sh” or “bash” commands?
...ause when we run it from the terminal we will only need to type myShell in order to run our command!
Now, in nano the top line MUST be #!/bin/bash then you may leave a new line before continuing.
For demonstration I will add a basic Hello World! response
So, I type the following:
echo Hello World!
...
Create batches in linq
... from the underlying IEnumerable, so elements must be enumerated in strict order, and accessed no more than once. If some elements aren't consumed in an inner loop, they are discarded (and trying to access them again via a saved iterator will throw InvalidOperationException: Enumeration already fini...
On design patterns: When should I use the singleton?
...ler. Your application should only have a single instance of the spooler in order to avoid conflicting request for the same resource.
Or a database connection or a file manager etc.
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