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What underlies this JavaScript idiom: var self = this?
...his even as the context is changing. It's a technique often used in event handlers (especially in closures).
Edit: Note that using self is now discouraged as window.self exists and has the potential to cause errors if you are not careful.
What you call the variable doesn't particularly matter. va...
Programmatically get height of navigation bar
...ure out if MoreViewController is showing? (If so, what do you want to do?) and if not, could you clarify what exactly you mean?
– Sum
Sep 5 '11 at 22:32
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Can I pass parameters by reference in Java?
...itself which is passed by value, hence it appears to be pass-by-reference (and people often claim that it is). This is not the case, as shown by the following:
Object o = "Hello";
mutate(o)
System.out.println(o);
private void mutate(Object o) { o = "Goodbye"; } //NOT THE SAME o!
Will print Hello...
Read file from line 2 or skip header row
How can I skip the header row and start reading a file from line2?
8 Answers
8
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Accessing the web page's HTTP Headers in JavaScript
...o read the current headers. You could make another request to the same URL and read its headers, but there is no guarantee that the headers are exactly equal to the current.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();...
How to avoid “RuntimeError: dictionary changed size during iteration” error?
...n you want to delete an object in inner dict. for example you have a dic A and dict B in dict A. if you want to delete object in dict B it occurs error
– Ali-T
Apr 18 at 6:35
1
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Why do I get an UnsupportedOperationException when trying to remove an element from a List?
...|")
On better algorithm
Instead of calling remove one at a time with random indices, it's better to generate enough random numbers in the range, and then traversing the List once with a listIterator(), calling remove() at appropriate indices. There are questions on stackoverflow on how to gener...
How can I change the thickness of my tag
...
For consistency remove any borders and use the height for the <hr> thickness. Adding a background color will style your <hr> with the height and color specified.
In your stylesheet:
hr {
border: none;
height: 1px;
/* Set the hr color ...
How to set up Android emulator proxy settings
I want to to use the browser inside the Android emulator, and I want to use the proxy settings on my machine. How can I set this up?
...
NGinx Default public www location?
...n educated guess as to what this means for you would be, if you downloaded and compiled the source yourself. In that case, the paths would be relative to whatever --prefix was used. If you didn't change it, it defaults to /usr/local/nginx. You can find the parameters nginx was compiled with via ngin...