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In Windows cmd, how do I prompt for user input and use the result in another command?
...o accept user input and then use the results of that input as part of the call to additional commands.
12 Answers
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How to prevent going back to the previous activity?
...rs to go back to. For instance, in your sign in activity, right after you call startActivity, call finish(). When the users hit the back button, they will not be able to go to the sign in activity because it has been killed off the stack.
...
Why doesn't C# support the return of references?
...f (x > y)
return ref x;
else
return ref y;
}
and then call it with
int a = 123;
int b = 456;
ref int c = ref Max(ref a, ref b);
c += 100;
Console.WriteLine(b); // 556!
I know empirically that it is possible to build a version of C# that supports these features because I hav...
How can I get the corresponding table header (th) from a table cell (td)?
...$(function($) {
"use strict";
// Only part of the demo, the thFromTd call does the work
$(document).on('mouseover mouseout', 'td', function(event) {
var td = $(event.target).closest('td'),
th = thFromTd(td);
th.parent().find('.highlight').removeClass('highlight');
if (even...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
...
And if you want to convert all factor columns, you can use: model.matrix(~., data=iris)[,-1]
– user890739
Jan 5 '16 at 0:32
1
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In Functional Programming, what is a functor?
...e reading various articles on functional programming, but the authors typically assume the reader already understands the term. Looking around on the web has provided either excessively technical descriptions (see the Wikipedia article ) or incredibly vague descriptions (see the section on Functors...
versionCode vs versionName in Android Manifest
... The versionCode attribute holds the significant version number used internally.
Reading that it's pretty clear that versionName is just something that's shown to the user, versionCode is what matters. Just keep increasing it and everything should be good.
...
Select text on input focus
...ndency.
Update2: Restrict as attribute.
Update3: Works in mobile Safari. Allows selecting part of the text (requires IE>8).
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Reset PHP Array Index
... answered Jun 7 '19 at 4:52
Allan MwesigwaAllan Mwesigwa
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...
Prevent browser from loading a drag-and-dropped file
...
You can add a event listener to the window that calls preventDefault() on all dragover and drop events.
Example:
window.addEventListener("dragover",function(e){
e = e || event;
e.preventDefault();
},false);
window.addEventListener("drop",function(e){
e = e || event;
...