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How do you manually execute SQL commands in Ruby On Rails using NuoDB
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The working command I'm using to execute custom SQL statements is:
results = ActiveRecord::Ba...
How can I check if a key is pressed during the click event with jQuery?
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174
You can easily detect the shift, alt and control keys from the event properties;
$("button")....
MongoDB not equal to
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149
Use $ne -- $not should be followed by the standard operator:
An examples for $ne, which stan...
Can TCP and UDP sockets use the same port?
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Yes, you can use the same port number for both TCP and UDP. Many protocols already do this, f...
Generating v5 UUID. What is name and namespace?
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Name and namespace can be used to create a hierarchy of (very probably) unique UUIDs.
Roughly...
Hex representation of a color with alpha channel?
...255, 0, 0, 0.5) would be 50% transparent red. RGB channels are 0-255 or 0%-100%, alpha is 0-1.
In CSS 4*, you can specify the alpha channel using the 7th and 8th characters of an 8 digit hex colour, or 4th character of a 4 digit hex colour (see CSS Level 4 spec*)
As of May 2019, >80% of users c...
How does the socket API accept() function work?
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Your confusion lies in thinking that a socket is identified by Server IP : Server Port. When ...
how to set a value for a span using JQuery
...ername").text("testing");
or
$("#submittername").html("testing <b>1 2 3</b>");
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Version number comparison in Python
...ite a cmp -like function which compares two version numbers and returns -1 , 0 , or 1 based on their compared valuses.
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Get all keys of an NSDictionary as an NSArray
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Just use
NSArray*keys=[dict allKeys];
In general, if you wonder if a specific class has a ...