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Difference between single quotes and double quotes in Javascript [duplicate]
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They are the same, I usually use single quotes but thats because I am a .net developer and asp.net in particular so it aids me in distinguishing between the 2 types of strings.
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Is there a way to check which CSS styles are being used or not used on a web page?
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Try using this tool,which is just a simple js script https://github.com/shashwatsahai/CSSExtractor/ This tool helps in getting the CSS from a specific page listing all sources for active styles and save it to a JSON with source as key and rules as value. It loads all the CSS fr...
Using an RDBMS as event sourcing storage
...just show you examples of an event-sourcing ledger I build to illustrate.
https://github.com/andrewkkchan/client-ledger-service
The above is an event sourcing ledger web service.
https://github.com/andrewkkchan/client-ledger-core-db
And the above I use RDBMS to compute states so you can enjoy all t...
What is this 'Lambda' everyone keeps speaking of?
...rn, Python has the concept of decorators. There are lots of example on the net for memoization decorators. The only difference is that in Python you most likely have a named nested function inside that decorator function. The reason being that Python only support single-expression lambdas. But the c...
Define: What is a HashSet?
HashSet
The C# HashSet data structure was introduced in the .NET Framework 3.5. A full list of the implemented members can be found at the HashSet MSDN page.
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How does lucene index documents?
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There's a fairly good article here: https://web.archive.org/web/20130904073403/http://www.ibm.com/developerworks/library/wa-lucene/
Edit 12/2014: Updated to an archived version due to the original being deleted, probably the best more recent alternative is htt...
How do I set vertical space between list items?
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You can use margin. See the example:
http://jsfiddle.net/LthgY/
li{
margin: 10px 0;
}
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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...d to we find this:
if ($url.Contains("http")) {
$request = [System.Net.HttpWebRequest]::Create($url)
}
else {
$URL_Format_Error = [string]"Connection protocol not specified. Recommended action: Try again using protocol (for example 'http://" + $url + "') instead. Function aborting..."...
Why is C so fast, and why aren't other languages as fast or faster? [closed]
...languages and platforms, such as Java (with its Java Virtual Machine) and .NET (with its Common Language Runtime) have improved performance over the years with advents such as just-in-time compilation which produces native machine code from bytecode to achieve higher performance.
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What are naming conventions for MongoDB?
... in the following example:
use myDB
use myNewDB
Content from: https://docs.mongodb.com/manual/core/databases-and-collections/#databases
COLLECTIONS
Lowercase names: avoids case sensitivity issues, MongoDB collection names are case sensitive.
Plural: more obvious to label a col...