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Test for existence of nested JavaScript object key
...th Claudiu's modification which is also significantly more performant than selected answer. See jsperf here jsperf.com/check-if-deep-property-exists-with-willnotthrow
– netpoetica
Nov 27 '14 at 5:35
...
Declaring variables inside loops, good practice or bad practice?
...; counter <= 10; counter++) {
// compiler can pull this out
const char testing[] = "testing";
cout << testing;
}
or you can pull the constant out:
const std::string testing = "testing";
for (int counter = 0; counter <= 10; counter++) {
cout << testing;
}
Do most...
Add a column with a default value to an existing table in SQL Server
...1), (2); alter table blah add b int null constraint df_blah_b default (0); select * from blah; You will see 2 NULL values for column b.
– ErikE
Jun 14 '13 at 22:19
48
...
Command line progress bar in Java
...plemented this sort of thing before. Its not so much about java, but what characters to send to the console.
The key is the difference between \n and \r.
\n goes to the start of a new line. But \r is just carriage return - it goes back to the start of the same line.
So the thing to do is to prin...
Parse JSON in C#
...result = new List<DynamicJsonObject>((result as ArrayList).ToArray().Select(x => new DynamicJsonObject(x as IDictionary<string, object>)));
}
else if (result is ArrayList)
{
result = new List<object>((result as ArrayList).ToArray());
}...
Convert SVG to image (JPEG, PNG, etc.) in the browser
...
@Luckyn if you call $(selector).html() on the parent of your svg element, it will work
– jonathanGB
Aug 12 '16 at 18:31
...
List of All Locales and Their Short Codes?
...NE: "French (Niger)",
fr_RW: "French (Rwanda)",
fr_RE: "French (Réunion)",
fr_BL: "French (Saint Barthélemy)",
fr_MF: "French (Saint Martin)",
fr_SN: "French (Senegal)",
fr_CH: "French (Switzerland)",
fr_TG: "French (Togo)",
fr: "French",
ff_SN: "Fulah (Senegal)...
How do you loop through currently loaded assemblies?
... results = type.Assembly.GetReferencedAssemblies();
return results.Select(o => o.FullName).OrderBy(o => o).ToList();
}
/// <summary>
/// Intent: Get assemblies currently dependent on entry assembly. Recursive.
/// </summary>
public static Dictionary...
How to get the value from the GET parameters?
...es URL:
You could access location.search, which would give you from the ? character on to the end of the URL or the start of the fragment identifier (#foo), whichever comes first.
Then you can parse it with this:
function parse_query_string(query) {
var vars = query.split("&");
var ...
Java switch statement: Constant expression required, but it IS constant
...ice.Choice1;
switch(ch) {
case Choice1:
System.out.println("Choice1 selected");
break;
case Choice2:
System.out.println("Choice2 selected");
break;
case Choice3:
System.out.println("Choice3 selected");
break;
}
}
}
Source:
Switch statement with enum
...