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What is the correct way to check for string equality in JavaScript?
...= operator can have very unexpected results due to the type-coercion internally, so using === is always the recommended approach.
For insight into this, and other "good vs. bad" parts of Javascript read up on Mr. Douglas Crockford and his work. There's a great Google Tech Talk where he summarizes ...
Why in C++ do we use DWORD rather than unsigned int? [duplicate]
...be safe, use DWORD when a DWORD is expected, regardless of what it may actually be.
For example, if they ever changed the range or format of unsigned int they could use a different type to underly DWORD to keep the same requirements, and all code using DWORD would be none-the-wiser. (Likewise, they...
Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
...nchronized method over the block.
Perhaps the only one ( but I wouldn't call it an advantage ) is you don't need to include the object reference this.
Method:
public synchronized void method() { // blocks "this" from here....
...
...
...
} // to here
Block:
public void method() {...
Changing CSS Values with Javascript
...ds like you want to change the global CSS so which will effictively change all elements of a peticular style at once. I've recently learned how to do this myself from a Shawn Olson tutorial. You can directly reference his code here.
Here is the summary:
You can retrieve the stylesheets via docum...
Get all elements but the first from an array
...ontent-policy\"\u003e(content policy)\u003c/a\u003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true,enableSnippets:true
});
...
How to disable mouse scroll wheel scaling with Google Maps API
...f the Maps API you would have had to use the disableScrollWheelZoom() API call as follows:
map.disableScrollWheelZoom();
The scrollwheel zooming is enabled by default in version 3 of the Maps API, but in version 2 it is disabled unless explicitly enabled with the enableScrollWheelZoom() API call....
RegEx for matching UK Postcodes
...that will validate a full complex UK postcode only within an input string. All of the uncommon postcode forms must be covered as well as the usual. For instance:
...
What is a columnar database?
...an easy fashion).
How do they differ from relational databases?
They generally differ from traditional (row-oriented) databases with regards to ...
performance...
storage requirements ...
ease of modification of the schema ...
...in specific use cases of DBMSes.
In particular they offer advanta...
Disable Required validation attribute under certain circumstances
...sily solved by using view models. View models are classes that are specifically tailored to the needs of a given view. So for example in your case you could have the following view models:
public UpdateViewView
{
[Required]
public string Id { get; set; }
... some other properties
}
pu...
Difference between Inheritance and Composition
... is now considered a blunder. A stack "is-NOT-a" vector; you should not be allowed to insert and remove elements arbitrarily. It should've been composition instead.
Unfortunately it's too late to rectify this design mistake, since changing the inheritance hierarchy now would break compatibility wit...