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What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...ypoint. i.e., the actual thing that gets executed is /bin/sh -c bash. This allowed Docker to implement RUN quickly by relying on the shell's parser.
Later on, people asked to be able to customize this, so ENTRYPOINT and --entrypoint were introduced.
Everything after ubuntu in the example above is ...
how to get the one entry from hashmap without iterating
...ext();
(Note: Checking for an empty map omitted).
Your code doesn't get all the entries in the map, it returns immediately (and breaks out of the loop) with the first entry that's found.
To print the key and value of this first element:
System.out.println("Key: "+entry.getKey()+", Value: "+entr...
Functional programming vs Object Oriented programming [closed]
...zations (new operations on things). Compilation and translation more generally are "killer apps" for functional languages.
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Listing each branch and its last revision's date in Git
... And faster.
See also "Name only option for git branch --list?"
More generally, tripleee reminds us in the comments:
Prefer modern $(command substitution) syntax over obsolescent backtick syntax.
(I illustrated that point in 2014 with "What is the difference between $(command) and `com...
Static table view outside UITableViewController
...ntainer view to your ViewController and size it about the size you want (smaller than the view) -> when you drag the container view it will create a segue and another view. Remove that segue and view.
Then finally ctrl click in your container and drag to your new TableViewContoller. Select Embed....
Converting .NET DateTime to JSON [duplicate]
My webs service is returning a DateTime to a jQuery call. The service returns the data in this format:
10 Answers
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UITableView : viewForHeaderInSection: not called during reloadData:
...iew with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: .
...
Ruby regular expression using variable name
...aracters. If it does and you want those matacharacters to do what they usually do in a regular expression, then the same gsub will work:
var = "Value|a|test"
str = "a test Value"
str.gsub( /#{var}/, 'foo' ) # => "foo foo foo"
However, if your search string contains metacharacters and you do n...
Should I use document.createDocumentFragment or document.createElement
...nt effectively disappears when you add it to the DOM. What happens is that all the child nodes of the document fragment are inserted at the location in the DOM where you insert the document fragment and the document fragment itself is not inserted. The fragment itself continues to exist but now has ...
In Sublime Text 2, how do I open new files in a new tab?
... an HTML file and a CSS file) but they open in new windows, which, on my small laptop display is a little inconvenient.
5 A...