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How to check if a map contains a key in Go?
...
bool. Set the map entry to true to put the value in the set, and then
test it by simple indexing.
attended := map[string]bool{
"Ann": true,
"Joe": true,
...
}
if attended[person] { // will be false if person is not in the map
fmt.Println(person, "was at the meeting")
}
S...
How to run a shell script at startup
...c/rc.d/
ln -s /etc/init.d/start_my_app /etc/rc.d/
Please note that on latest Debian, this will not work as your script have to be LSB compliant (provide, at least, the following actions: start, stop, restart, force-reload, and status):
https://wiki.debian.org/LSBInitScripts
As a note, you should...
Minimal web server using netcat
... of executing a bash
$ while true; do { echo -e 'HTTP/1.1 200 OK\r\n'; sh test; } | nc -l 8080; done
NOTE: This command was taken from: http://www.razvantudorica.com/08/web-server-in-one-line-of-bash
this executes bash script test and return the result to a browser client connecting to the serve...
Can we define implicit conversions of enums in c#?
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This solution might be 'right' as an exercise, or testing someone's programming skills but, please, don't do this in real life. Not only it's overkill, it's unproductive, unmaintainable and ugly as hell. You don't need to use an enum just for the sake of it. You either put a...
How to change checkbox's border style in CSS?
... You may need to add !important to your css when using outline. I was testing this in Firefox 12.0 and without !important the outline would vanish for as long as I was clicking the checkbox.
– Weezle
May 16 '12 at 20:18
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How to change an Android app's name?
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@lxknvlk, from my testing on Android 5 and 5.1, the name referred to in this answer is displayed in the list of installed applications, the uninstall dialog, and the "App Info" screen for your app. If you want to customise the name shown in t...
Calling pylab.savefig without display in ipython
...n and matplotlib.pylab in this regard. But, when I call pylab.savefig("test.png") the current figure get's displayed in addition to being saved in test.png . When automating the creation of a large set of plot files, this is often undesirable. Or in the situation that an intermediate file for ...
Understanding the difference between Object.create() and new SomeFunction()
... Crockford's shim.
The method is starting to be natively implemented on latest browsers, check this compatibility table.
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How to test if string exists in file with Bash?
... it is therefore advisable, for the sake of portability, to use logic that tests for this general condition instead of strict equality with 2.
To suppress the normal output from grep, you can redirect it to /dev/null. Note that standard error remains undirected, so any error messages that grep migh...
How to find out if you're using HTTPS without $_SERVER['HTTPS']
...e is a load balancer between the client and your server, this code doesn't test the connection between the client and the load balancer, but the connection between the load balancer and your server. To test the former connection, you would have to test using the HTTP_X_FORWARDED_PROTO header, but it...