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Mac OS X Terminal: Map option+delete to “backward delete word”
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Fantastic, that requires no extra setup. I notice <Esc> b and <Esc> f also work for jumping back or forwards one word.
– joeytwiddle
Feb 3 '15 at 9:31
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Why is null an object and what's the difference between null and undefined?
...avaScript: Boolean false.
name = '';
You: What is name?
JavaScript: Empty string
*: name in this context is meant as a variable which has never been defined. It could be any undefined variable, however, name is a property of just about any HTML form element. It goes way, way back and was institute...
How to avoid having class data shared among instances?
... But why does this happens only for list? When i declared an integer or string outside the init, it was not shared among the objects? Can anyone share any doc link to this concept?
– Amal Ts
May 20 '15 at 6:03
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How does having a dynamic variable affect performance?
...method we call were trying to do something intensive, like combining a few strings together or searching a collection for a value, those operations would likely far outweigh the difference between a direct call and a dynamic call.
Performance is just one of many good reasons not to use dynamic unnec...
When would you use the Builder Pattern? [closed]
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.NET StringBuilder class is a great example of builder pattern. It is mostly used to create a string in a series of steps. The final result you get on doing ToString() is always a string but the creation of that string varies acco...
try/catch versus throws Exception
...t to use try-catch.
There is a rule "An overridden method cannot throw any extra exception other than what its parent class is throwing". If there is any extra exception that should be handled using try-catch.
Consider this code snippet.
There is a simple base class
package trycatchvsthrows;
publi...
How do you do Impersonation in .NET?
... = true, CharSet = CharSet.Unicode)]
internal static extern bool LogonUser(String lpszUsername, String lpszDomain, String lpszPassword, int dwLogonType, int dwLogonProvider, out IntPtr phToken);
This is the basic call definition, however there is a lot more to consider to actually using it in prod...
Should I use s and s inside my s?
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For me, the unordered lists are extra markup that aren't really required. When I look at an HTML document, I want it to be as clean and easy to read as possible. It's already clear to the viewer that a list is being presented if proper indentation is used...
SqlDataAdapter vs SqlDataReader
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Actually, with a little bit of extra code you certainly can run linq queries (or, at least one query) on a datareader. Just use an iterator block to yield return the DataReader cast as an IDataRecord inside your while (reader.Read()) loop.
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Why can I add named properties to an array as if it were an object?
...f
lastIndexOf
map
pop
push
reverse
shift
slice
some
sort
splice
toSource
toString
unshift
valueOf
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