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How to create a DataTable in C# and how to add rows?
...yTable.Columns.Add("Id", typeof(int));
MyTable.Columns.Add("Name", typeof(string));
Add row to DataTable method 1:
DataRow row = MyTable.NewRow();
row["Id"] = 1;
row["Name"] = "John";
MyTable.Rows.Add(row);
Add row to DataTable method 2:
MyTable.Rows.Add(2, "Ivan");
Add row to DataTable met...
Want to find records with no associated records in Rails
...ager loading table(s) Currently, Active Record recognizes the table in the string, and knows to JOIN the comments table to the query, rather than loading comments in a separate query. However, doing this without writing a full-blown SQL parser is inherently flawed. Since we don't want to write an SQ...
What is this date format? 2011-08-12T20:17:46.384Z
...nd the Z means "zero hour offset" also known as "Zulu time" (UTC). If your strings always have a "Z" you can use:
SimpleDateFormat format = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", Locale.US);
format.setTimeZone(TimeZone.getTimeZone("UTC"));
Or using Joda Time, you can use ISODat...
What's the best way to check if a file exists in C?
...e file exists. Stat() can have a large overheard if you don't need all the extra info.
– Martin Beckett
Oct 23 '08 at 15:16
4
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How do I enumerate the properties of a JavaScript object? [duplicate]
...hat might modify a prototype) doesn't break yours. Apart from adding a few extra bytes of code, there is no downside to using hasOwnProperty().
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Why do we need tuples in Python (or any immutable data type)?
...mutable objects can allow substantial optimization; this is presumably why strings are also immutable in Java, developed quite separately but about the same time as Python, and just about everything is immutable in truly-functional languages.
in Python in particular, only immutables can be hashable ...
Resizing an iframe based on content
...frame(height);
}
// Helper function, parse param from request string
function getParam( name )
{
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var r...
Does JavaScript guarantee object property order?
...imply put, the iteration order is a combination of the insertion order for strings keys, and ascending order for number-like keys:
// key order: 1, foo, bar
const obj = { "foo": "foo", "1": "1", "bar": "bar" }
Using an array or a Map object can be a better way to achieve this. Map shares some simil...
Must qualify the allocation with an enclosing instance of type GeoLocation
...E GeoLocation.java
public class GeoLocation {
public static void main(String[] args) throws InterruptedException {
int size = 10;
// create thread pool with given size
ExecutorService service = Executors.newFixedThreadPool(size);
// queue some tasks
f...
Using PHP with Socket.io
...th php/mysql/static files only) with adsl subscription, without paying any extra. So no, being able to buy crappy VPS for $5 is definitely not a solution.
– Olli
Apr 1 '12 at 12:51
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