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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...
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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How to check if an intent can be handled from some activity?
...n intent is not available,
fun isIntentAvailable(context: Context, action: String?): Boolean {
val packageManager = context.packageManager
val intent = Intent(action)
val resolveInfo: List<*> = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY)
retu...
How to use clock() in C++
...0;
int min = 0;
int hr = 0;
//cout << "Press any key to start:";
//char start = _gtech();
for (;;)
{
newline();
if(msec == 1000)
{
++sec;
msec = 0;
}
if(sec == 60)
...
How to check whether a script is running under Node.js?
...bpack, process and process.version exists within the bundle, so I added an extra check for process.version where process.release.node is undefined on client side but has a node version as a value on server side
– Aaron
Feb 19 '17 at 1:49
...
When to use lambda, when to use Proc.new?
...om :0
irb(main):006:0> p.call "hello"
TypeError: can't convert nil into String
from (irb):2:in `+'
from (irb):2
from (irb):6:in `call'
from (irb):6
from :0
The page also recommends using lambda unless you specifically want the error tolerant behavior. I agree with this senti...
Export query result to .csv file in SQL Server 2008
..., this does not properly quote text for CSV. A comma or new line within a CHAR/VARCHAR should be quoted, but is not. That causes data to shift into new columns or into a new line.
– Eric J.
Dec 7 '14 at 22:08
...
Difference between Select and ConvertAll in C#
...gt; calls, while ConvertAll will loop through the underlying array without extra calls or range checks.
3) Select will create an extra IEnumerable<T> object.
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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...
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(...