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In Docker, what's the difference between a container and an image? [duplicate]
...om a Ubuntu image. So this Ubuntu is what people call "Host OS"? Let's say my system is running on CentOS. That's not the Host OS, correct? Also, will each container take copy of the Ubuntu image? I'm guessing no copy will be created because it will be heavy just like VMs.
– co...
How can I strip first X characters from string using sed?
... away X first characters and ${string:5} doesn't work for some reason in my system.
11 Answers
...
How best to determine if an argument is not sent to the JavaScript function
... be desired.
To summarize: Only use it if you know what you're doing!
In my opinion, using || is also the way to go if there's more than one optional argument and one doesn't want to pass an object literal as a workaround for named parameters.
Another nice way to provide default values using argu...
Add table row in jQuery
...t you're looking for - what if you had a tbody for example:
<table id="myTable">
<tbody>
<tr>...</tr>
<tr>...</tr>
</tbody>
</table>
You would end up with the following:
<table id="myTable">
<tbody>
<tr>...</t...
Removing the remembered login and password list in SQL Server Management Studio
...
In my scenario I only wanted to remove a specific username/password from the list which had many other saved connections I didn't want to forget. It turns out the SqlStudio.bin file others are discussing here is a .NET binary se...
Failed to instantiate module [$injector:unpr] Unknown provider: $routeProvider
...d ngRoute as a dependency for your application:
var app = angular.module('MyApp', ['ngRoute', ...]);
If instead you are planning on using angular-ui-router or the like then just remove the $routeProvider dependency from your module .config() and substitute it with the relevant provider of choice...
How do I replace NA values with zeros in an R dataframe?
...
See my comment in @gsk3 answer. A simple example:
> m <- matrix(sample(c(NA, 1:10), 100, replace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5...
How can I get a view's current width and height when using autolayout constraints?
...t answer and well explained, too. Saved me after an hour or two of pulling my hair out.
– Ben Kreeger
Jul 11 '13 at 15:32
2
...
adb command not found
...
In my case with Android Studio 1.1.0 path was this
/Users/wzbozon/Library/Android/sdk/platform-tools
Add the following to ~/.bash_profile
export PATH=~/Library/Android/sdk/tools:$PATH
export PATH=~/Library/Android/sdk/platfo...
Non-Relational Database Design [closed]
...e only just started with non-relational DBs, and I am still trying to wrap my head around it and figure out what the best model would be. And I can only speak for CouchDB.
Still, I have some preliminary conclusions:
Have you come up with alternate designs that work much better in the non-relationa...