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Difference between socket and websocket?
...: http://highlevellogic.blogspot.com/2011/09/websocket-server-demonstration_26.html
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What are the most-used vim commands/keypresses?
...dows
^Wn new window
^Wj down to next window; ^Wk up to previous window
^W_ maximise current window; ^W= make all windows equal size
^W+ increase window size; ^W- decrease window size
Source Navigation
% jump to matching parenthesis/bracket/brace, or language block if language module loaded
gd ...
CMake: How to build external projects and include their targets
...txt - just like any other third-party dependency added this way or via find_file / find_library / find_package.
If you want to make use of ExternalProject_Add, you'll need to add something like the following to your CMakeLists.txt:
ExternalProject_Add(project_a
URL ...project_a.tar.gz
PREFIX $...
Efficient SQL test query or validation query that will work across all (or most) databases
...himpsky)
PostgreSQL
SQLite
SELECT 1 FROM DUAL
Oracle
SELECT 1 FROM any_existing_table WHERE 1=0
or
SELECT 1 FROM INFORMATION_SCHEMA.SYSTEM_USERS
or
CALL NOW()
HSQLDB (tested with version 1.8.0.10)
Note: I tried using a WHERE 1=0 clause on the second query, but it didn't work as a value for Ap...
Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5
...g and select the right storyboard:
#import "AppDelegate.h"
#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:(v) options:NSNumericSearch] != NSOrderedAscending)
@interface AppDelegate ()
@property (strong, nonatomic) UIViewController *initia...
Post data to JsonP
... clonedForm.attr('action', postUrl);
var postToken = 'JSONPPOST_' + (new Date).getTime();
clonedForm.attr('id', postToken);
clonedForm.append('<input name="JSONPPOSTToken" value="'+postToken+'">');
clonedForm.attr('id', postToken );
clonedForm.submit();
var tim...
How to Store Historical Data
...ll active records will go in FOO, and all historical records will go in FOO_Hist. Many different fields in FOO can be updated by the user, so I want to keep an accurate account of everything updated. FOO_Hist holds the exact same fields as FOO with the exception of an auto-incrementing HIST_ID. E...
Hexadecimal To Decimal in Shell Script
...
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e 'p "FF".to_i(16)'
255
with node.js:
$ nodejs <<< "console.log(parseInt('FF', 16))"
255
with rhino:
$ rhino<<EOF
print(parseInt('FF', 16))
EOF
...
255
with groovy:
$ groovy -e 'println Integer.parseInt("FF",16)'
...
What's the difference between BaseAdapter and ArrayAdapter?
...String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_dropdown_item_1line, COUNTRIES);
AutoCompleteTextView textView = (AutoCompleteTextView) findViewById(R.id.countries_list);
textView.setAdapter(adapter);
Here we can't use BaseAdapter like ArrayAdapter.
...
How can I make a div stick to the top of the screen once it's been scrolled to?
...xample link you gave is so much clean and clear that I can't even see it! -_-
– sohaiby
May 14 '15 at 14:50
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