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Identify if a string is a number
... @CFP +1...RegEx are always better than usual functions, when applicable!
– MAXE
Jun 27 '12 at 15:32
19
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Why use prefixes on member variables in C++ classes
...e lowercase letters are not allowed. In my specific case, I found the _L happened to be reserved by Visual C++ 2005 and the clash created some unexpected results.
I am on the fence about how useful it is to mark up local variables.
Here is a link about which identifiers are reserved:
What are the...
Why am I getting error for apple-touch-icon-precomposed.png
...
I guess apple devices make those requests if the device owner adds the site to it. This is the equivalent of the favicon. To resolve, add 2 100×100 png files, save it as apple-touch-icon-precomposed.png and apple-touch-icon.png and ...
Could not load NIB in bundle
I am trying to integrate Janrain Engage as custom module with Appcelerator Titanium. I have created a sample module and dragged the JREngage folder to the sample module xcodeproj as indicated in the Jainrain's documentation.
...
How to set java_home on Windows 7?
...e as the installation path for the Java Development Kit.
Click OK.
Click Apply Changes.
Note: You might need to restart Windows
The complete article is here, on my blog: Setting JAVA_HOME Variable in Windows.
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C++ equivalent of java's instanceof
... call. It also works regardless of RTTI is enabled or not.
Note that this approach doesn't support multiple levels of inheritance so if you're not careful you might end with code looking like this:
// Here we have a SpecialBox class that inherits Box, since it has its own type
// we must check for...
How can I use getSystemService in a non-activity class (LocationManager)?
...l in onCreate function like this:
package com.atClass.lmt;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.location.Location;
public class lmt extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super....
file_put_contents(meta/services.json): failed to open stream: Permission denied
...er dump-autoload
Laravel < 5.4
php artisan cache:clear
chmod -R 777 app/storage
composer dump-autoload
NOTE: DO NOT DO THIS ON ANY REMOTE SERVER (DEV OR PRODUCTION)
When I asked this question, this was a problem on my localhost, running in a Virtual Machine. So I thought setting up a 777 ...
What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
... value NULL. Even though the column is marked as NOT NULLable in your O/R-Mapping, LINQ will load it successfully and set the column-String to null.
Now you change something and call
SubmitChanges().
LINQ will generate a SQL query
containing "WHERE [title] IS NULL", to make sure the title has not ...
Django template how to look up a dictionary value with a variable
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For me creating a python file named template_filters.py in my App with below content did the job
# coding=utf-8
from django.template.base import Library
register = Library()
@register.filter
def get_item(dictionary, key):
return dictionary.get(key)
usage is like what culebrón...