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Format floats with standard json module
...t the json module seems to assume all custom types should be serialized as strings. Ie: you end up with the Javascript string "0.33" in the output, not the number 0.33. There may be a way yet to make this work, but it's harder than it looks.
...
Where is Java's Array indexOf?
... is what you are looking for
import org.apache.commons.lang3.ArrayUtils;
String[] colours = { "Red", "Orange", "Yellow", "Green" };
int indexOfYellow = ArrayUtils.indexOf(colours, "Yellow");
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How to get a user's client IP address in ASP.NET?
...otcha: HTTP_X_FORWARDED_FOR returns multiple IP addresses"
C#
protected string GetIPAddress()
{
System.Web.HttpContext context = System.Web.HttpContext.Current;
string ipAddress = context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (!string.IsNullOrEmpty(ipAddress))
{
...
How to fix “Incorrect string value” errors?
...r noticing an application tended to discard random emails due to incorrect string value errors, I went though and switched many text columns to use the utf8 column charset and the default column collate ( utf8_general_ci ) so that it would accept them. This fixed most of the errors, and made the ...
Copying data from one SQLite database to another
...ctoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *maindbPath = [documentsDir stringByAppendingPathComponent:@"User.sqlite"];;
NSString *newdbPath = [documentsDir stringByAppendingPathComponent:@"...
Unique Constraint in Entity Framework Code First
...
Starting with EF 6.1 it is now possible:
[Index(IsUnique = true)]
public string EmailAddress { get; set; }
This will get you a unique index instead of unique constraint, strictly speaking. For most practical purposes they are the same.
...
Encode html entities in javascript
...u're using UTF8 character encoding, make sure your database is storing the strings in UTF8. You still may see instances where the characters do not display correctly, depending on system font configuration and other issues out of your control.
Documentation
String.charCodeAt - https://developer.m...
Using sections in Editor/Display templates
...wo helpers:
public static class HtmlExtensions
{
public static MvcHtmlString Script(this HtmlHelper htmlHelper, Func<object, HelperResult> template)
{
htmlHelper.ViewContext.HttpContext.Items["_script_" + Guid.NewGuid()] = template;
return MvcHtmlString.Empty;
}
...
How do I get the current GPS location programmatically in Android?
... + loc.getLongitude(), Toast.LENGTH_SHORT).show();
String longitude = "Longitude: " + loc.getLongitude();
Log.v(TAG, longitude);
String latitude = "Latitude: " + loc.getLatitude();
Log.v(TAG, latitude);
/*------- To get city name from coordina...
【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...msg->msg_flags&MSG_MORE; //UDP_CORK或者MSG_MORE
int (*getfrag)(void *, char *, int, int, int, struct sk_buff *);
struct sk_buff *skb;
struct ip_options_data opt_copy;
if (len > 0xFFFF) //长度不能超过64k， UDP头部只有16位长度位
return -EMSGSIZE;
/*
* Check the flags.
...