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How does git compute file hashes?
...human-readable integer), followed by a NUL character
$ echo -e 'blob 14\0Hello, World!' | shasum
8ab686eafeb1f44702738c8b0f24f2567c36da6d
Source: http://alblue.bandlem.com/2011/08/git-tip-of-week-objects.html
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How do pointer to pointers work in C?
...----+----+----+
What you can see here, is that at address 63 the string "hello" starts. So in this case, if this is the only occurrence of "hello" in memory then,
const char *c = "hello";
... defines c to be a pointer to the (read-only) string "hello", and thus contains the value 63. c must its...
What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
..., "param") ?
For a more readable name, try one of these suggestion:
s = "Hello {0} world {1}!".Fmt("Stack", "Overflow");
s = "Hello {0} world {1}!".FormatBy("Stack", "Overflow");
s = "Hello {0} world {1}!".FormatWith("Stack", "Overflow");
s = "Hello {0} world {1}!".Display("Stack", "Overflow");
s ...
Error: Could not find or load main class [duplicate]
...tatic final void main(String[] cmd_lineParams) {
System.out.println("Hello World!");
}
}
Then calling:
java -classpath . TheClassName
results in Error: Could not find or load main class TheClassName. This is because it must be called with its fully-qualified name:
java -classpath . t...
How can I test an AngularJS service from the console?
...function(){
return {
f1 : function(world){
return 'Hello' + world;
}
};
});
This returns an object, nothing to new here.
Now the way to get this from the console is
b )
var $inj = angular.injector(['app']);
var serv = $inj.get('ExampleService');
serv.f1("Wor...
How can I concatenate NSAttributedStrings?
... return result
}
Now you can concatenate them just by adding them:
let helloworld = NSAttributedString(string: "Hello ") + NSAttributedString(string: "World")
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How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
... to break at line x when char* x points to a string whose value equals "hello" ? If yes, how?
3 Answers
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How to save as a new file and keep working on the original one in Vim?
...now that there are two ways of "SAVE AS" in Vim.
Assumed that I'm editing hello.txt.
:w world.txt will write hello.txt's content to the file world.txt while keeping hello.txt as the opened buffer in vim.
:sav world.txt will first write hello.txt's content to the file world.txt, then close buffer...
Reverse of JSON.stringify?
...
You need to JSON.parse() the string.
var str = '{"hello":"world"}';
try {
var obj = JSON.parse(str); // this is how you parse a string into JSON
document.body.innerHTML += obj.hello;
} catch (ex) {
console.error(ex);
}
...
How do I make a Mac Terminal pop-up/alert? Applescript?
...sascript. For example:
osascript -e 'tell app "Finder" to display dialog "Hello World"'
Replacing “Finder” with whatever app you desire. Note if that app is backgrounded, the dialog will appear in the background too. To always show in the foreground, use “System Events” as the app:
osas...