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What is the “right” JSON date format?
...sed to new Date(...). The easiest and probably most portable format is the timestamp containing milliseconds since 1970.
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What's the advantage of a Java enum versus a class with public static final fields?
... @Bohemian: I didn't "miss the purpose" of enums -- I use them all the time. See my response to your comment above.
– casablanca
Apr 3 '12 at 2:40
1
...
What are the applications of binary trees?
...wo sub-trees is less than or equal to 1. Adding those names above one at a time into a balanced tree would give you the following sequence:
1. Alice
/ \
= =
2. Alice
/ \
= Bob
/ \
= =
3. Bob
_/ \_
Alice ...
Automatically enter SSH password with script
... found a better solution: writing a simple script.
#!/usr/bin/expect
set timeout 20
set cmd [lrange $argv 1 end]
set password [lindex $argv 0]
eval spawn $cmd
expect "assword:"
send "$password\r";
interact
Put it to /usr/bin/exp, then you can use:
exp <password> ssh <anything>
ex...
What's better to use in PHP, $array[] = $value or array_push($array, $value)?
...reds of thousands of strings to your array.
Edit: Ran this code:
$t = microtime(true);
$array = array();
for($i = 0; $i < 10000; $i++) {
$array[] = $i;
}
print microtime(true) - $t;
print '<br>';
$t = microtime(true);
$array = array();
for($i = 0; $i < 10000; $i++) {
array_push($...
Best way to track onchange as-you-type in input type=“text”?
...
In a ever changing world like the Web Standards is, sometimes the accepted answer could be changed after some years... This is the new accepted answer to me.
– Erick Petrucelli
Nov 25 '15 at 15:50
...
How do you create an asynchronous method in C#?
...st approach is to use the async keyword:
private static async Task<DateTime> CountToAsync(int num = 10)
{
for (int i = 0; i < num; i++)
{
await Task.Delay(TimeSpan.FromSeconds(1));
}
return DateTime.Now;
}
If your async method is doing CPU work, you should use Task.Run:
pri...
What is the meaning of “non temporal” memory accesses in x86
...instruction in order for their results to be seen by other processors in a timely fashion.
When data is produced and not (immediately) consumed again, the fact that memory store operations read a full cache line first and then modify the cached data is detrimental to performance. This operation pus...
How to stop tracking and ignore changes to a file in Git?
...y won't ever change. It tells git to stop checking that huge folder every time for changes, locally, since it won't have any. The assume-unchanged index will be reset and file(s) overwritten if there are upstream changes to the file/folder (when you pull).
git update-index --assume-unchanged <...
Avoid synchronized(this) in Java?
...s is part of your class' exposed interface, and should be documented. Sometimes the ability of other code to use your lock is desired. This is true of things like Collections.synchronizedMap (see the javadoc).
All synchronized methods within the same class use the exact same
lock, which reduc...