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How do you get the list of targets in a makefile?
I've used rake a bit (a Ruby make program), and it has an option to get a list of all the available targets, eg
20 Answers
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No module named pkg_resources
I'm deploying a Django app to a dev server and am hitting this error when I run pip install -r requirements.txt :
34 Answe...
Bash: If/Else statement in one line
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Is it necessary to re-direct the output of the ps command to a file ? Would this not work ? if ps aux | grep some_proces[s]; then echo 1; else echo 0; fi. Locally it seems to work for me. Is it because OP had the redirection in the command he tried?
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Transitions on the CSS display property
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You can concatenate two transitions or more, and visibility is what comes handy this time.
div {
border: 1px solid #eee;
}
div > ul {
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s linear;
}
div:hover > ul {
visibil...
Why should eval be avoided in Bash, and what should I use instead?
Time and time again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
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Remove all files except some from a directory
...y:
find . -type f -not -name '*txt' -print0 | xargs -0 rm --
The print0 and -0 combination is needed if there are spaces in any of the filenames that should be deleted.
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Difference between freeze and seal
I just heard about the JavaScript methods freeze and seal , which can be used to make any Object immutable.
8 Answers
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Node.js check if file exists
...h.existsSync('foo.txt')) {
// do something
}
For Node.js v0.12.x and higher
Both path.exists and fs.exists have been deprecated
*Edit:
Changed: else if(err.code == 'ENOENT')
to: else if(err.code === 'ENOENT')
Linter complains about the double equals not being the triple equals.
Usin...
What does extern inline do?
I understand that inline by itself is a suggestion to the compiler, and at its discretion it may or may not inline the function, and it will also produce linkable object code.
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Why is there an “Authorization Code” flow in OAuth2 when “Implicit” flow works so well?
...n-HTTPS redirect URI because not all developers have an SSL enabled server and if they do it's not always properly configured (non-self signed, trusted SSL certificates, synchronised server clock...).
You don't want hackers to be able to steal access/refresh tokens by intercepting requests.
Detail...