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How to find out client ID of component for ajax update/render? Cannot find component with expression
...ted HTML output to find out the right client ID. Open the page in browser, do a rightclick and View Source. Locate the HTML representation of the JSF component of interest and take its id as client ID. You can use it in an absolute or relative way depending on the current naming container. See follo...
Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
I created a windows application developed in .NET 3.5 in a 32 bit Windows 2008 server. When deployed the application in a 64 bit server it shows the error "Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine ".
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How to check if object has any properties in JavaScript?
...already part of ECMA 5 you can safely shim it: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– HMR
Nov 15 '13 at 13:32
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Should I initialize variable within constructor or outside constructor [duplicate]
...ook at the constructor as well.
If you have more than one constructor, you don't have to repeat the initializations (and you cannot forget them).
Of course, if the initialization value is different in different constructors (or even calculated in the constructor), you must do it in the constructor...
Convert any object to a byte[]
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Be careful with what you do with "any" object on the other side, as it may no longer make sense (for example, if that object were a handle to a file, or similar)
– Rowland Shaw
Feb 1 '11 at 16:27
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PDO mysql: How to know if insert was successful
I'm using PDO to insert a record (mysql and php)
7 Answers
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Remove duplicates from an array of objects in JavaScript
...uld never user the length in the for loop, because it will slow everything down calculating it on every iteration. Assign it to a variable outside the loop and pass the variable instead of the things.thing.length.
– 0v3rth3d4wn
Aug 26 '14 at 12:56
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ASP.NET MVC 5 - Identity. How to get current ApplicationUser
...thods are available (they are extension methods for UserManager, so if you do not include this you will only see FindByIdAsync):
using Microsoft.AspNet.Identity;
If you are not in a controller at all (e.g. you are using IOC injection), then the user id is retrieved in full from:
System.Web.HttpC...
How to avoid annoying error “declared and not used”
...e of an unused variable may indicate a bug, while unused imports just slow down compilation. Accumulate enough unused imports in your code tree and things can get very slow. For these reasons, Go allows neither.
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Apache Spark: map vs mapPartitions?
...'s the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks.
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