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Does PostgreSQL support “accent insensitive” collations?
...the function in the right expression. There you can also supply unaccented strings like 'Joao' directly.
The faster function does not translate to much faster queries using the expression index. That operates on pre-computed values and is very fast already. But index maintenance and queries not usi...
React JSX: selecting “selected” on selected option
...even easier for you. Instead of defining selected on each option, you can (and should) simply write value={optionsState} on the select tag itself:
<select value={optionsState}>
<option value="A">Apple</option>
<option value="B">Banana</option>
<option value="C"...
What is the difference between & and && in Java?
... a short circuit operator whereas & is a AND operator.
Try this.
String s = null;
boolean b = false & s.isEmpty(); // NullPointerException
boolean sb = false && s.isEmpty(); // sb is false
shar...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...volatile or sig_atomic_t at the receipt of a signal
Attempting to modify a string literal or any other const object during its lifetime
Concatenating a narrow with a wide string literal during preprocessing
Function and Template
Not returning a value from a value-returning function (directly or by...
Jquery select all elements that have $jquery.data()
...
Or just: $('[data-myAttr]')
– andlrc
Feb 29 '12 at 13:35
4
Thought the sam...
What is the default initialization of an array in Java?
...
What about a String array?
– Zac
Dec 23 '17 at 7:05
1
...
&& (AND) and || (OR) in IF statements
...uated. And this is very useful. For example, if you need to test whether a String is not null or empty, you can write:
if (str != null && !str.isEmpty()) {
doSomethingWith(str.charAt(0));
}
or, the other way around
if (str == null || str.isEmpty()) {
complainAboutUnusableString();
} ...
Open a folder using Process.Start
...
You don't need the double backslash when using unescaped strings:
System.Diagnostics.Process.Start("explorer.exe",@"c:\teste");
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Android get current Locale, not default
...f you have an app that lets people change their locale and have the views' strings, number formats etc change, then you need to use Devunwired's response
– 1mike12
Nov 18 '15 at 16:09
...
How to remove “onclick” with JQuery?
...stackoverflow.com/questions/209029/…
– Lance Cleveland
Jan 6 '12 at 18:04
6
See first comment o...