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javascript check for not null
... Strict Not Version uses the "Strict Equality Comparison Algorithm" http://www.ecma-international.org/ecma-262/5.1/#sec-11.9.6. The !== has faster performance, than the != operator because the Strict Equality Comparison Algorithm doesn't typecast values.
2. Non-strict Not Version
if (val != 'null') ...
How to store arrays in MySQL?
...
Use database field type BLOB to store arrays.
Ref: http://us.php.net/manual/en/function.serialize.php
Return Values
Returns a string containing a byte-stream representation of value that
can be stored anywhere.
Note that this is a binary string which may include null bytes, and
needs to b...
Wget output document and headers to STDOUT
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Try the following, no extra headers
wget -qO- www.google.com
Note the trailing -. This is part of the normal command argument for -O to cat out to a file, but since we don't use > to direct to a file, it goes out to the shell. You can use -qO- or -qO -.
...
Neo4j - Cypher vs Gremlin query language
...eed to use Gremlin, I would do so for a specific query I would find on the net and never come back to again.
You can always learn Cypher really fast (in days) and then continue with the (longer-run) general Gremlin.
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Intro to GPU programming [closed]
...rm to do GPU programming. There are tons of cool materials to read.
http://www.nvidia.com/object/cuda_home.html
Hello world would be to do any kind of calculation using GPU.
Hope that helps.
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nginx: [emerg] could not build the server_names_hash, you should increase server_names_hash_bucket_s
...ror when I left off a ; on the server_name line.
had:
server_name www.mydomain.com
access_log /var/log/nginx/www.mydomain.com;
fix:
server_name www.mydomain.com;
access_log /var/log/nginx/www.mydomain.com;
All directives in nginx config files must end with a ;
I ofte...
Access-Control-Allow-Origin Multiple Origin Domains?
...t;
<IfModule mod_headers.c>
SetEnvIf Origin "http(s)?://(www\.)?(google.com|staging.google.com|development.google.com|otherdomain.example|dev02.otherdomain.example)$" AccessControlAllowOrigin=$0
Header add Access-Control-Allow-Origin %{AccessControlAllowOrigin}e env=AccessC...
Entity Framework 6 Code first Default value
...uding removal of SQL constraints on attribute removal.
I am also re-using .NET Framework's native DefaultValue attribute.
Usage
[DatabaseGenerated(DatabaseGeneratedOption.Computed)]
[DefaultValue("getutcdate()")]
public DateTime CreatedOn { get; set; }
For this to work you need to update Identit...
Is it possible to force ignore the :hover pseudoclass for iPhone/iPad users?
...ue on mobile devices. I edited your fiddle as an example: http://jsfiddle.net/FvACN/8/.
Just include the fastclick.min.js lib on your page, and activate via:
FastClick.attach(document.body);
As a side benefit, it will also remove the annoying 300ms onClick delay that mobile devices suffer from...
Convert JS Object to form data
...e information to which child it s connected. Maybe the problem comes from .Net Core and how it manage upload files. Thanks for your answer.
– Cedric Arnould
Sep 26 '18 at 22:03
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