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How do I resolve the “java.net.BindException: Address already in use: JVM_Bind” error?
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@novice_developer netstat is the command you are looking for, with -a and -p options, man netstat is your friend for all the rest :)
– sox with Monica
Jul 26 '17 at 20:38
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Facebook App: localhost no longer works as app domain
I've been writing a game for Facebook using Rails and jQuery. Since I started using the Facebook Javascript SDK, using localhost as an app domain seemed to work just fine. I was able to test my game both locally and on Heroku.
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How to drop columns using Rails migration
...ill be created: rails g migration RemoveUnusefulFieldsFromUsers hair_color:string favorite_number:integer removes two attributes using a single migration. Note also that remove_column is not supported by change method, so you have to write both up and down.
– Claudio Floreani
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REST APIs: custom HTTP headers vs URL parameters
...terize access to the resource. This especially comes into play with posts and searches: /orders/find?q=blahblah&sort=foo. There's a fine line between parameters and sub-resources: /orders/view/client/23/active versus /orders/view/client/23?show=active. I recommend the sub-resource style and...
How can I check if an argument is defined when starting/calling a batch file?
...guments.
⍟ exist on file system (either file or directory?) or a generic string.
⍟ specify if is a file
⍟ specify is a directory
⍟ no extensions, would work in legacy scripts!
⍟ minimal code ☺
@echo off
:loop
::-------------------------- has argument ?
if ["%~1"]==[""] (
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Do SVG docs support custom data- attributes?
...SVG provides an alternative mechanism for data-*. SVG allows any attribute and tag to be included, as long as it doesn't conflict with existing ones (in other words: you should use namespaces).
To use this (equivalent) mechanism:
use mydata:id instead of data-myid, like this: <p mydata:id="12...
What is the difference between Python's list methods append and extend?
...st.
my_list.append(object)
Whatever the object is, whether a number, a string, another list, or something else, it gets added onto the end of my_list as a single entry on the list.
>>> my_list
['foo', 'bar']
>>> my_list.append('baz')
>>> my_list
['foo', 'bar', 'baz']...
Generating a drop down list of timezones with PHP
... site in the users preferred timezone. Below are two lists that I found and then one method using the built in PHP DateTime class in PHP 5.
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Concurrent vs serial queues in GCD
... running in background thread")
}
let imgURL = URL(string: "https://upload.wikimedia.org/wikipedia/commons/0/07/Huge_ball_at_Vilnius_center.jpg")!
let _ = try! Data(contentsOf: imgURL)
print("\(i) completed downloading")
}
}
}
Task wil...
Can a div have multiple classes (Twitter Bootstrap) [duplicate]
... can have as many classes as you want (this is both regarding to bootstrap and HTML in general):
<div class="active dropdown-toggle"></div>
Just separate the classes by space.
Also: Keep in mind some bootstrap classes are supposed to be used for the same stuff but in different cases ...