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How to set the prototype of a JavaScript object that has already been instantiated?
...it seems on the surface, and beyond most peoples' pay grade in regards to knowledge of Javascript internals.
The prototype property of an object is used when creating new child objects of that object. Changing it does not reflect in the object itself, rather is reflected when that object is used as...
Do interfaces inherit from Object class in java
...extends Object implicitly, hence when you do e.equals(null), the language knows that you have a class that is a subtype of employee.
The JVM will do runtime checking for your code (i.e. throw NullPointerException).
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Is there a way to check which CSS styles are being used or not used on a web page?
Want to know which CSS styles are currently being used on a web page.
7 Answers
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How to use chrome web inspector to view hover code
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Now you can see both the pseudo-class style rules and force them on elements.
To see the rules like :hover in the Styles pane click the small dotted box button in the top right.
To force an element into :hover state, rig...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
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@wilhelmtell - you'd need a table to know which ones are the palindromes.
– Mark Ransom
Apr 8 '10 at 20:01
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Passing variable arguments to another function that accepts a variable argument list
...a va_list, but that function (or one that it calls) must have some way of knowing what's in the va_list.
– Jonathan Leffler
Feb 14 at 20:18
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Importing from a relative path in Python
...imports, where you can avoid doing anything hacky. With this method, you know you are getting a relative import rather than an absolute import. The '..' means, go to the directory above me:
from ..Common import Common
As a caveat, this will only work if you run your python as a module, from out...
Git: Show all of the various changes to a single line in a specified file over the entire git histor
...ult situation. The file in question moved from paht_a/file to path_b/file. Now when I do it in path_b it only show changes up to when the file moves from path_a to path_b. If I do it in path_a it tells me fatal: ambiguous argument 'file': unknown revision or path not in the working tree.
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Android studio add external project to build.gradle
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With Gradle 1.10 (don't know what other versions this will be valid for) this is what I came up with based on a response given here http://forums.gradle.org/gradle/topics/reference_external_project_as_dependancy
I have an api library project, a com...
Script parameters in Bash
...h bar.sh $1
# cat foo2.sh
bash bar.sh "$1"
# bar.sh
echo "1-$1" "2-$2"
Now invoke:
$ bash foo.sh "a b"
1-a 2-b
$ bash foo2.sh "a b"
1-a b 2-
When you invoke foo.sh "a b" then it invokes bar.sh a b (two arguments), and with foo2.sh "a b" it invokes bar.sh "a b" (1 argument). Always have in mi...