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Node.js check if file exists
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A easier way to do this synchronously.
if (fs.existsSync('/etc/file')) {
console.log('Found file');
}
The API doc says how existsSync work:
Test whether or not the given path exists by checking with the file system.
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In Bash, how to add “Are you sure [Y/n]” to any command or alias?
...want to continue? <y/N> " prompt
if [[ $prompt =~ [yY](es)* ]]
then
(etc...)
That tests whether the user input starts with 'y' or 'Y' and is followed by zero or more 'es's.
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Visual Studio C# statement collapsing
... blocks of code. You click some combination and your ifs, for/while loops, etc are all collapsed so that you can read your code in the highest level possible. Then you would go deeper into the code. Your solution is not viable because you would have to first collapse all the regions and you don't se...
Appending a line to a file only if it does not already exist
... '};:F;s/.*mkhomedir.*/session\trequired\tpam_mkhomedir.so umask=0022/g;' /etc/pam.d/common-session
– bgStack15
May 31 '16 at 16:01
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JavaScript post request like a form submit
...y: post('/contact/', {name: 'Johnny Bravo', csrfmiddlewaretoken: $("#csrf_token").val()});
– Davidson Lima
Nov 22 '17 at 16:09
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How can I get a Dialog style activity window to fill the screen?
...Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.your_layout);
getWindow().setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
}
It's important that you call Window.setLayout() after you call setContentView(), o...
Using multiple arguments for string formatting in Python (e.g., '%s … %s')
...swered Jul 18 '14 at 17:49
Lordn__nLordn__n
31411 silver badge1111 bronze badges
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How to return an array from JNI to Java?
...th the JNI function NewObjectArray(). From the perspective of JNI, that's all a two dimensional array is, an object array containing a number of other inner arrays.
The following for loop creates the inner arrays which are of type int[] using the JNI function NewIntArray(). If you just wanted t...
How to diff a commit with its parent?
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git diff 15dc8 15dce~1
~1 means 'parent', ~2 'grandparent, etc.
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Reverse engineering from an APK file to a project
... .zip please refers link
After getting .zip now you get classes.dex files, etc. At this stage you are able to see drawable but not xml and java files, so continue.
If you don’t see the extensions go through check the configuration
Step 2:
Now extract this zip apk file in the same folder. Now downl...