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How to calculate dp from pixels in android programmatically [duplicate]
...();
getWindowManager().getDefaultDisplay().getMetrics(dm);
String str_ScreenSize = "The Android Screen is: "
+ dm.widthPixels
+ " x "
+ dm.heightPixels;
TextView mScreenSize = (TextView) findViewById(R.id.strScreenS...
warning: implicit declaration of function
...t;stdio.h>
#include <stdlib.h>
#include <xc.h>
#include <string.h>
#include <math.h>
#include <libpic30.h> // http://microchip.wikidot.com/faq:74
#include <stdint.h>
#include <stdbool.h>
#include "GenericTypeDefs.h" // This has the 'BYTE' type defi...
return query based on date
....3 using Node v0.12.7 and v4.4.4 and used:
{ $gte: new Date(dateVar).toISOString() }
I'm passing in an ISODate (e.g. 2016-04-22T00:00:00Z) and this works for a .find() query with or without the toISOString function. But when using in an .aggregate() $match query it doesn't like the toISOString fu...
emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
...ith display-local-help."))
which is a format used for text properties in strings where:
"-%-", text to be propertized: one dash and a %-construct that results in "dashes sufficient to fill the remainder of the mode line", resulting in the famous Emacs ------.
0, the first character upon which th...
How do you remove a Cookie in a Java Servlet
...e, passing "/" as the strPath parameter.
public static Cookie eraseCookie(String strCookieName, String strPath) {
Cookie cookie = new Cookie(strCookieName, "");
cookie.setMaxAge(0);
cookie.setPath(strPath);
return cookie;
}
...
What is the difference between object keys with quotes and without quotes?
...ce those are reserved keywords.
Some people might be tempted to pass in a string with whitespace then call o['I can have whitespace'] But I would call that bad practice.
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Unicode, UTF, ASCII, ANSI format differences
...ar encoding.
UTF-16: 2 bytes per "code unit". This is the native format of strings in .NET, and generally in Windows and Java. Values outside the Basic Multilingual Plane (BMP) are encoded as surrogate pairs. These used to be relatively rarely used, but now many consumer applications will need to be...
In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?
...up again.
public static void RemoveEverythingButUserInfo()
{
foreach (String o in HttpContext.Current.Session.Keys)
{
if (o != "UserInfoIDontWantToAskForAgain")
keys.Add(o);
}
}
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...
Extract traceback info from an exception object
...
A way to get traceback as a string from an exception object in Python 3:
import traceback
# `e` is an exception object that you get from somewhere
traceback_str = ''.join(traceback.format_tb(e.__traceback__))
traceback.format_tb(...) returns a list ...
How can I pretty-print JSON using node.js?
...
JSON.stringify's third parameter defines white-space insertion for pretty-printing. It can be a string or a number (number of spaces). Node can write to your filesystem with fs. Example:
var fs = require('fs');
fs.writeFile('te...