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Count(*) vs Count(1) - SQL Server
...ution-time work. The Compilation time work is a trivially small amount of extra work in the current implementation. There is an expansion of the * to all columns in some cases followed by a reduction back to 1 column being output due to how some of the internal operations work in binding and optim...
Extending an Object in Javascript
...t
The TypeScript equivalent looks the same:
interface Person {
name: string,
greet: Function
}
const Person = {
name: 'Anonymous',
greet: function(): void { console.log(`Hi, I am ${this.name}.` }
}
const jack: Person = Object.create(Person)
jack.name = 'Jack'
jack.greet(...
Is there a way to iterate over a range of integers?
...ugh it is fully inlined in the setup phase. In the loop phase there is an extra instruction in the loop, but it isn't too bad.
I'd use the simple for loop.
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CSS text-overflow in a table cell?
...the ‘text-overflow’ property
text-overflow clip | ellipsis | <string>
Initial: clip
APPLIES TO: BLOCK CONTAINERS <<<<
Inherited: no
Percentages: N/A
Media: visual
Computed value: as specified
The M...
How to make ruler always be shown in Sublime text 2?
...rs": [75, 80, 85]
}
This example will display 3 rulers, at 75, 80 and 85 chars length.
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Windbg Step 2 分析程序堆栈实战 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...转载+整理http: www.cnblogs.com killmyday#include"stdafx.h"#include<tchar.h>#ifdef_UNICODE#define_ttol_wtol#else#define_ttolatol#e...转载+整理 http://www.cnblogs.com/killmyday
#include "stdafx.h"
#include <tchar.h>
#ifdef _UNICODE
#define _ttol _wtol
#else
#define _ttol atol
#...
What is an example of the simplest possible Socket.io example?
...te easiest and smallest example i could come up with.
this just returns a string passed from the console UPPERCASED.
app.js
var http = require('http');
var app = http.createServer(function(req, res) {
console.log('createServer');
});
app.listen(3000);
var io = require('socket.io').liste...
C/C++ check if one bit is set in, i.e. int variable
...
@iNFINITEi std::bitset<CHAR_BIT * sizeof(int)> to be even more correct
– Xeverous
Apr 23 '18 at 9:24
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What are DDL and DML?
... the transaction making points within groups
SET TRANSACTION – specify characteristics for the transaction
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Python Logging (function name, file name, line number) using a single file
... to the current instance. The trick being used that is stumping you is the string formatting using a dict as the RHS of the % operator. "%(foo)s" % bar will be replaced by whatever the value of bar["foo"] is.
Finally, you can use some introspection tricks, similar to those used by pdb that can log ...