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Is there any kind of hash code function in JavaScript?
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JavaScript objects can only use strings as keys (anything else is converted to a string).
You could, alternatively, maintain an array which indexes the objects in question, and use its index string as a reference to the object. Something like this:
var ObjectReferen...
Objective-C - Remove last character from string
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In your controller class, create an action method you will hook the button up to in Interface Builder. Inside that method you can trim your string like this:
if ([string length] > 0) {
string = [string substringToIndex:[string length] - 1];
} else {
//no characters to dele...
How to write very long string that conforms with PEP8 and prevent E501
As PEP8 suggests keeping below the 80 column rule for your python program, how can I abide to that with long strings, i.e.
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How do you obtain a Drawable object from a resource id in android package?
...y on an image button. Is there a way to use the code below (or something like it) to get an object from the android.R.drawable.* package?
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Remove unused imports in Android Studio
I recently started Android Studio IDE to make my android apps. I find shortkey to remove unused import in Android Studio is not working ( Ctrl + Shift + O )
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Merging two images in C#/.NET
...of a video:
Image playbutton;
try
{
playbutton = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
Image frame;
try
{
frame = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
using (frame)
{
using (var bitmap = new Bitmap(width, heigh...
When to use which design pattern? [closed]
I like design patterns very much, but I find it difficult to see when I can apply one. I have read a lot of websites where design patterns are explained. I do understand the most of them, but I find it difficult to recognize a pattern in my own situations.
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Is it possible to start activity through adb shell? [duplicate]
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Launch adb shell and enter the command as follows
am start -n yourpackagename/.activityname
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Logging errors in ASP.NET MVC
... or page level. It can be configured to log to various different places (like SQL Server, Email etc). It also provides a web frontend, so that you can browse through the log of exceptions.
Its the first thing I add to any asp.net mvc app I create.
I still use log4net, but I tend to use it for logg...
Append TimeStamp to a File Name
I have come across this problem several times in which I would like to have multiple versions of the same file in the same directory. The way I have been doing it using C# is by adding a time stamp to the file name with something like this DateTime.Now.ToString().Replace('/', '-').Replace(':', '.')...