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How to destroy an object?
...2;
unset($var2);
echo $var->a;
returns
2
See it in action here: https://eval.in/1054130
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Fixed page header overlaps in-page anchors
...html {
scroll-padding-top: 70px; /* height of sticky header */
}
from: https://css-tricks.com/fixed-headers-on-page-links-and-overlapping-content-oh-my/
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What Automatic Resource Management alternatives exist for Scala?
...y for automatic resource management. You can find the documentation here: https://github.com/jsuereth/scala-arm/wiki
This library supports three styles of usage (currently):
1) Imperative/for-expression:
import resource._
for(input <- managed(new FileInputStream("test.txt")) {
// Code that us...
How to specify jackson to only use fields - preferably globally
...e sure you have the values set to what works with your program.
Credit to https://stackoverflow.com/a/13408807 for helping me find out about @JacksonAnnotationsInside
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
... mispredictions affect performance, take a look at this excellent answer: https://stackoverflow.com/a/11227902/1001643
Compilers typically don't have enough information to know which branches will alias and whether those aliases will be significant. However, that information can be determined at ...
PHP cURL HTTP CODE return 0
...00), you'll get the actual http code, in my case a 200 (as expected).
See https://www.php.net/manual/en/function.curl-setopt.php
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How to calculate dp from pixels in android programmatically [duplicate]
...sed to convert px->dp, for that you must use the method described here: https://stackoverflow.com/a/17880012/504611 (quoted below for convenience).
Without Context object, elegant static methods:
public static int dpToPx(int dp) {
return (int) (dp * Resources.getSystem().getDisplayMetric...
When is the init() function run?
...internal Go packages use init() to initialize tables and such, for example https://github.com/golang/go/blob/883bc6/src/compress/bzip2/bzip2.go#L480
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Difference between viewDidLoad and viewDidAppear
...get memory leaks if you don't release them when the view disappears.
See: https://developer.apple.com/documentation/uikit/uiviewcontroller
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How to monitor network calls made from iOS Simulator
...uggested by other answers, is a good solution if you only want to see HTTP/HTTPS traffic. Burp Suite is pretty good. It may be a pain to configure though. I'm not sure how you would convince the simulator to talk to it. You might have to set the proxy on your local Mac to your instance of a proxy se...