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How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...ecause a calculation failed - eg square root of a negative, divide by zero etc - it makes no sense in comparing them against anything else. After all if divide by zero is a nan is it equivalent to the square root of -2 or square root of -3 ?
Nan allows a calculation that includes a step that return...
CSS: Animation vs. Transition
...raight on point:
Transition:
Needs a triggering element (:hover, :focus etc.)
Only 2 animation states (start and end)
Used for simpler animations (buttons, dropdown menus and so on)
Easier to create but not so many animation/effect possibilities
Animation @keyframes:
It can be used for endles...
POST Content-Length exceeds the limit
...g HTTP POST method the text also includes headers with file size and name, etc.
If you want to successfully uppload 1GiB files, you have to set:
upload_max_filesize = 1024M
post_max_size = 1025M
Note, the correct suffix for GB is G, i.e. upload_max_filesize = 1G.
No need to set memory_limit.
...
json_decode to array
...json_decode($jsondata, true);
foreach ($arr as $k=>$v){
echo $v; // etc.
}
If $jsondata is ever returned as an empty string (as in my experience it often is), json_decode will return NULL, resulting in the error Warning: Invalid argument supplied for foreach() on line 3. You could add a lin...
Node.js Web Application examples/tutorials [closed]
...f downloads in real time, checking which parts of videos are being watched etc.
One problem is scalability, as soon as you have more then 1 Node process, many (but not all) of the benefits of having the data stored between requests go away, so you have to make sure that clients always hit the same ...
How to add months to a date in JavaScript? [duplicate]
...ry to add months to a date handling edge cases (leap year, shorter months, etc):
Date.isLeapYear = function (year) {
return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
};
Date.getDaysInMonth = function (year, month) {
return [31, (Date.isLeapYear(year) ? 29 ...
What's the difference between [ and [[ in Bash? [duplicate]
... FWIW, reference for the set of conditional expressions (like -f, -z etc) that can go inside [ or [[ is at Bash Reference Manual: Bash Conditional Expressions
– ShreevatsaR
May 2 '18 at 19:29
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Xcode 4 says “finished running ” on the targeted device — Nothing happens
... attempting to run on an earlier device (e.g. iPhone 3G, 2G, iPod 1st gen, etc) I have another solution. New projects created in Xcode 4.2 by default specify 'armv7' in the 'Required Device Capabilities'. You'll need to remove this if wanting to support devices that run armv6 (e.g. the iPhone 3G).
...
Should I use px or rem value units in my CSS? [closed]
...
I see, so I have to getComputedStyle() but the result is on always pixel, so I have to divide the result by the rem value (like 16). CMIIW
– Ampersanda
Feb 26 '18 at 15:04
...
How to access parent scope from within a custom directive *with own scope* in AngularJS?
...ransclude, require, passing in variables (or the scope itself) from above, etc. I'm totally willing to bend over backwards, but I want to avoid something totally hacky or unmaintainable. For example, I know I could do it right now by taking the $scope from the preLink parameters and iterating ov...