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Handling a colon in an element ID in a CSS selector [duplicate]
...ession and my answer for more information.
– Mathias Bynens
Jul 6 '11 at 5:32
2
I just encountere...
Is there a documented way to set the iPhone orientation?
...are working around the older SDK limitations. I personally have been told by Apple to remove the method call on my next update so I am not yet sure if having a hack for older devices will get through the approval process.
s...
Sending command line arguments to npm script
...his is a low-level API (whitespace-separated array of strings, as provided by the operating system to the node executable).
Edit 2013.10.03: It's not currently possible directly. But there's a related GitHub issue opened on npm to implement the behavior you're asking for. Seems the consensus is ...
Initialize a long in Java
... answered Jul 26 '11 at 17:29
MByDMByD
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Meaning of …interface{} (dot dot dot interface)
...erence is how you pass the arguments to such a function. It is done either by giving each element of the slice separately, or as a single slice, in which case you will have to suffix the slice-value with the three dots. The following examples will result in the same call:
fmt.Println("First", "Secon...
Is Haxe worth learning? [closed]
... libraries for specific targets. Haxe tries to ease the pain of transition by having just one source language (the Haxe language) and many outputs (through the Haxe compiler). The language is very friendly and quite easy to learn, no matter your background.
Reading the website it looks very prom...
How to effectively work with multiple files in Vim
...
You can jump to any tab by using ngt, where n is the index of the tab (beginning with one). I think there's an option that displays the index of each tab near the file name, but I don't know what it is. If anyone knows, I'd love to hear it.
...
How to reorder data.table columns (without copying)
...olorder:
In data.table parlance, all set* functions change their input by reference. That is, no copy is made at all, other than temporary working memory, which is as large as one column.
so should be pretty efficient. See ?setcolorder for details.
...
Hiding the scroll bar on an HTML page
...tweaks.
Firefox 64 now supports the experimental scrollbar-width property by default (63 requires a configuration flag to be set). To hide the scrollbar in Firefox 64:
#element {
scrollbar-width: none;
}
To see if your current browser supports either the pseudo element or scrollbar-width, tr...
Check Whether a User Exists
...
You can also check user by id command.
id -u name gives you the id of that user.
if the user doesn't exist, you got command return value ($?)1
And as other answers pointed out: if all you want is just to check if the user exists, use if with id dire...