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Delete newline in Vim
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J deletes extra leading spacing (if any), joining lines with a single space. (With some exceptions: after /[.!?]$/, two spaces may be inserted; before /^\s*)/, no spaces are inserted.)
If you don't want that behavior, gJ simply remov...
Subtract two variables in Bash
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You just need a little extra whitespace around the minus sign, and backticks:
COUNT=`expr $FIRSTV - $SECONDV`
Be aware of the exit status:
The exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0.
Keep this in min...
How to remove empty cells in UITableView? [duplicate]
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But it adds extra spacing above and below table sections.
– Ben Sinclair
Jan 30 '18 at 21:29
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What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
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The single * means that there can be any number of extra positional arguments. foo() can be invoked like foo(1,2,3,4,5). In the body of foo() param2 is a sequence containing 2-5.
The double ** means there can be any number of extra named parameters. bar() can be invoked like...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...virtual void eat(){ std::cout<<"EAT=>D";} };
int main(int argc, char ** argv){
A *a = new D();
a->eat();
delete a;
}
... that way the output is gonna be the correct one: "EAT=>D"
Virtual inheritance only solves the duplication of the grandfather!
BUT you still need ...
Which is better: … or …
...PT - - %Script; -- script statements -->
<!ATTLIST SCRIPT
charset %Charset; #IMPLIED -- char encoding of linked resource --
type %ContentType; #REQUIRED -- content type of script language --
src %URI; #IMPLIED -- URI for an external script --
...
What is TypeScript and why would I use it in place of JavaScript? [closed]
...lay with this in the TypeScript Playground)
class Greeter {
greeting: string;
constructor (message: string) {
this.greeting = message;
}
greet() {
return "Hello, " + this.greeting;
}
}
And here's the JavaScript it would produce
var Greeter = (function () {
...
How to avoid Python/Pandas creating an index in a saved csv?
...er way do to this is specify pd.read_csv(..., index_col=[0], and avoid the extra "drop" call.
– cs95
May 28 '19 at 4:19
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How to get all child inputs of a div element (jQuery)
...n Rails or Spring MVC you may need to use divs with square braces or other chars, that are not allowed you can use document.getElementById and this solution still works if you have multiple inputs with the same type.
var div = document.getElementById(divID);
$(div).find('input:text, input:password,...
Wait until a process ends
...itForExit(1000 * 60 * 5); // Wait up to five minutes.
There are a few extra features in there which you might find useful...
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