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How to set focus on input field?
...ut type="text" focus-me="shouldBeOpen">
app.directive('focusMe', ['$timeout', '$parse', function ($timeout, $parse) {
return {
//scope: true, // optionally create a child scope
link: function (scope, element, attrs) {
var model = $parse(attrs.focusMe);
...
Keyboard Interrupts with python's multiprocessing Pool
... certainly interrupt a condition wait.
Note that this doesn't happen if a timeout is specified; cond.wait(1) will receive the interrupt immediately. So, a workaround is to specify a timeout. To do that, replace
results = pool.map(slowly_square, range(40))
with
results = pool.map_async...
How to create an array for JSON using PHP?
...
Best way that you should go every time for creating json in php is to first convert values in ASSOCIATIVE array.
After that just simply encode using json_encode($associativeArray). I think it is the best way to create json in php because whenever we are fetc...
Find kth smallest element in a binary search tree in Optimum way
...t in the left subtree.
Complexity analysis:
This takes O(depth of node) time, which is O(log n) in the worst case on a balanced BST, or O(log n) on average for a random BST.
A BST requires O(n) storage, and it takes another O(n) to store the information about the number of elements. All BST oper...
INSERT INTO vs SELECT INTO
...ications? If the table is a permanent table, you can create indexes at the time of table creation which has implications for performance both negatively and positiviely. Select into does not recreate indexes that exist on current tables and thus subsequent use of the table may be slower than it need...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...Java (with its Java Virtual Machine) and .NET (with its Common Language Runtime) have improved performance over the years with advents such as just-in-time compilation which produces native machine code from bytecode to achieve higher performance.
...
lose vim colorscheme in tmux mode
...g in supports 256 colors, run tmux -2 or tmux -2 attach (tmux decides each time you attach a new or existing session to a terminal). A sensible alias would be alias tmux='tmux -2'. See also tmux, TERM and 256 colours support
– Gilles 'SO- stop being evil'
Mar 1...
Why are arrays covariant but generics are invariant?
...ys covariant?", or more accurately, "Why were arrays made covariant at the time?"
When generics were introduced, they were purposefully not made covariant for reasons pointed out in this answer by Jon Skeet:
No, a List<Dog> is not a List<Animal>. Consider what you can do with a List...
Show the progress of a Python multiprocessing pool imap_unordered call?
...on my system (Ubuntu) with both Python 2 and 3. I've used def do_word(*a): time.sleep(.1) as an example. If it doesn't work for you then create a complete minimal code example which demonstrates your issue: describe using words what do you expect to happen and what happens instead, mention how do yo...
In C#, how do I calculate someone's age based on a DateTime type birthday?
A given DateTime Type represents a person's birthday.
How could I calculate his / her age in years?
61 Answers
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