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How does variable assignment work in JavaScript?
... example, you are assigning a brand new object.
a = b = {};
a and b are now pointers to the same object. So when you do:
a.foo = 'bar';
It sets b.foo as well since a and b point to the same object.
However!
If you do this instead:
a = 'bar';
you are saying that a points to a different ob...
What are dictionary view objects?
...eritems() returns an iterator over the dictionary’s (key, value) pairs.
Now take the following example to see the difference between an interator of dict and a view of dict
>>> d = {"x":5, "y":3}
>>> iter = d.iteritems()
>>> del d["x"]
>>> for i in iter: print...
A proper wrapper for console.log with correct line number?
I'm now developing an application, and place a global isDebug switch. I would like to wrap console.log for more convenient usage.
...
Proper SCSS Asset Structure in Rails
..."bootstrap/bootstrap.scss";
Because of the order of the imports, you can now use the variables, loaded with @import "variables.scss"; in any other .scss file imported after it. So they can be used in type.scss in the bootstrap folder but also in my_model.css.scss.
After this create a folder named...
Getting a random value from a JavaScript array
...ple = function(){
return this[Math.floor(Math.random()*this.length)];
}
Now:
[1,2,3,4].sample() //=> a random element
Code released into the public domain under the terms of the CC0 1.0 license.
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Remove or uninstall library previously added : cocoapods
...(alt+shift+command+K), and the warnings/linker errors were gone. Pods were now successfully uninstalled from the project.
– Mark Barrasso
Jan 30 '17 at 21:30
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Check for internet connection availability in Swift
...uru said, this is based on stackoverflow.com/a/25623647/1187415, which has now been updated for Swift 2.
– Martin R
Jun 10 '15 at 1:52
2
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Regex Named Groups in Java
...
(Update: August 2011)
As geofflane mentions in his answer, Java 7 now support named groups.
tchrist points out in the comment that the support is limited.
He details the limitations in his great answer "Java Regex Helper"
Java 7 regex named group support was presented back in September 2...
How do I delete unpushed git commits?
...or me, git reset --hard origin says fatal: ambiguous argument 'origin': unknown revision or path not in the working tree.. Why?
– trss
Jul 10 '13 at 12:01
...
Hibernate, @SequenceGenerator and allocationSize
We all know the default behaviour of Hibernate when using @SequenceGenerator - it increases real database sequence by one , multiple this value by 50 (default allocationSize value) - and then uses this value as entity ID.
...