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Does Java 8 provide a good way to repeat a value or function?
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To get and equivalent to Haskell's
take 8 (repeat 1)
You could write
StringBuilder s = new StringBuilder();
repeat.accept(8, () -> s.append("1"));
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How to filter SQL results in a has-many-through relation
...ndstetter, Very nice work. I started a bounty on this question to give you extra credit (but I have to wait 24hrs). Anyway, I wonder how these queries go when you starting adding multiple club_id's instead of just two...
– Xeoncross
Oct 17 '11 at 17:58
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How can I change the EditText text without triggering the Text Watcher?
...ea to put that in a utility function:
void updateText(EditText editText, String text) {
boolean focussed = editText.hasFocus();
if (focussed) {
editText.clearFocus();
}
editText.setText(text);
if (focussed) {
editText.requestFocus();
}
}
For Kotlin:
Since...
Is it possible to create static classes in PHP (like in C#)?
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You can have static classes in PHP but they don't call the constructor automatically (if you try and call self::__construct() you'll get an error).
Therefore you'd have to create an initialize() function and call it in each method:
<?php
class Hello
{
private static...
Reload django object from database
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Not sure what "All non-deferred fields are updated "mentioned in the docs means?
– Yunti
Nov 13 '15 at 18:15
1
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How to set or change the default Java (JDK) version on OS X?
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those really are backticks the export line
– David West
Nov 27 '14 at 19:38
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Why does mongoose always add an s to the end of my collection name
...schemas collection name option.
Example:
var schema = new Schema({ name: String }, { collection: 'actor' });
or
schema.set('collection', 'actor');
or
var collectionName = 'actor'
var M = mongoose.model('Actor', schema, collectionName);
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How to check edittext's text is email address or not?
...an true for valid false for invalid
*/
public static boolean isEmailValid(String email) {
String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(email);
return matcher.m...
Calling C++ class methods via a function pointer
...ility with member pointers - Visual C++, at least in the past, needed some extra clues about how to represent member pointer types. I'd use the static function approach for an embedded system - the representation of a pointer is the same as any other function pointer, the costs are obvious, and ther...
Which is faster: while(1) or while(2)?
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mov rbp, rsp
.seh_setframe rbp, 0
sub rsp, 32
.seh_stackalloc 32
.seh_endprologue
call __main
.L2:
jmp .L2
.seh_endproc
.ident "GCC: (tdm64-2) 4.8.1"
With -O1:
.file "main.c"
.intel_syntax noprefix
.def __main; .scl 2; .type 32; .end...