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Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
I noticed that in Internet Explorer (but, unfortunately, not in the other browsers I tested), you can use some Unicode variable names. This made my day, and I was absolutely delighted that I could write fun Unicode-laden code like this:
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Application Error - The connection to the server was unsuccessful. (file:///android_asset/www/index.
...);
Explanation:
This can be happened due to the following reasons
The core reason: the problem is likely due to the speed of the emulator so the network is too slow complete the communication in a timely fashion.
This can be due to:
Your code/data/image is of too much of size ( I guess in you...
Generate an integer that is not among four billion given ones
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Assuming that "integer" means 32 bits: 10 MB of space is more than enough for you to count how many numbers there are in the input file with any given 16-bit prefix, for all possible 16-bit prefixes in one pass through the input file. At least one of the buckets will have be hit les...
wkhtmltopdf: cannot connect to X server
...vert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests by developers to have this run on servers without GUI, I am pretty sure it runs a virtual X server in the static version . I have been us...
How to Customize a Progress Bar In Android
I am working on an app in which I want to show a ProgressBar , but I want to replace the default Android ProgressBar .
9 ...
How to randomize (shuffle) a JavaScript array?
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The de-facto unbiased shuffle algorithm is the Fisher-Yates (aka Knuth) Shuffle.
See https://github.com/coolaj86/knuth-shuffle
You can see a great visualization here (and the original post linked to this)
function shuffle(array) {
var currentIndex ...
How to make PyCharm always show line numbers
I cannot seem to be able to find the setting to enable line numbers for all files, but I have to always right click and enable this on per file basis.
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Get the current first responder without using a private API
...en want the first responder to resign if the user taps on the background. For this purpose I wrote a category on UIView, which I call on the UIWindow.
The following is based on that and should return the first responder.
@implementation UIView (FindFirstResponder)
- (id)findFirstResponder
{
if...
How to use single storyboard uiviewcontroller for multiple subclass
Let say I have a storyboard that contains UINavigationController as initial view controller. Its root view controller is subclass of UITableViewController , which is BasicViewController . It has IBAction which is connected to right navigation button of the navigation bar
From there I woul...
What is the easiest way to duplicate an activerecord record?
I want to make a copy of an activerecord record, changing a single field in the process (in addition to the id ). What is the simplest way to accomplish this?
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