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How to get label of select option with jQuery?
...st give an id to the select as
<select id=theid>
<option value="test">label </option>
</select>
then you can call the selected label like that:
jQuery('#theid option:selected').text()
share
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How to perform runtime type checking in Dart?
...on, the is operator is defined on page 59 of the spec, section 10.30 'Type test'
– Duncan
Oct 11 '11 at 8:53
4
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Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
...s under the impression that Linux thread creation was very cheap and after testing I determined that the overhead of function call in a new thread vs. a normal one is enormous. The overhead for creating a thread to handle a function call is something like 10000 or more times slower than a plain func...
Javascript - How to detect if document has loaded (IE 7/Firefox 3)
...alambalazs. The cross-browser way to do it in pure JavaScript is simply to test document.readyState:
if (document.readyState === "complete") { init(); }
This is also how jQuery does it.
Depending on where the JavaScript is loaded, this can be done inside an interval:
var readyStateCheckInterval...
html5 - canvas element - Multiple layers
...(ctx) are off screen. The image has been previously rendered onto ctx3. In test 1 of this benchmark, I directly render ctx3 onto ctx1. In test 2, I render ctx3 onto ctx2 and then ctx2 to ctx1. Test 2 is 30 times slower than test 1 on my computer. That is why I say using a intermediate canvas is much...
nodejs how to read keystrokes from stdin
... @Plentybinary I suspect you aren't actually running node v0.10.25. I tested this against v0.10.25 and it works properly. and process.stdin.setRawMode exists, is a function, and works properly. I also tested on iojs-2.3.1 and it still works there as well.
– Peter Lyons
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Find first element by predicate
...ns return a lazy stream). To convince you, you can simply do the following test:
List<Integer> list = Arrays.asList(1, 10, 3, 7, 5);
int a = list.stream()
.peek(num -> System.out.println("will filter " + num))
.filter(x -> x > 5)
.findFirst()
...
Create folder with batch but only if it doesn't already exist
...e a directory only if the folder does not exist.
Note that this existence test will return true only if VTS exists and is a directory. If it is not there, or is there as a file, the mkdir command will run, and should cause an error. You might want to check for whether VTS exists as a file as well...
How to parse JSON data with jQuery / JavaScript?
...Parsed);
Then you can iterate the following:
var j ='[{"id":"1","name":"test1"},{"id":"2","name":"test2"},{"id":"3","name":"test3"},{"id":"4","name":"test4"},{"id":"5","name":"test5"}]';
...by using $().each:
var json = $.parseJSON(j);
$(json).each(function (i, val) {
$.each(val, function (k...
MySQL Insert into multiple tables? (Database normalization?)
...use transactions.
BEGIN;
INSERT INTO users (username, password)
VALUES('test', 'test');
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'Hello world!', 'http://www.stackoverflow.com');
COMMIT;
Have a look at LAST_INSERT_ID() to reuse autoincrement values.
Edit: you said...