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Undo git pull, how to bring repos to old state
...and then reset to it.
Warning
The commands listed in this section remove all uncommitted changes, potentially leading to a loss of work:
git reset --hard
Alternatively, reset to a particular point in time, such as:
git reset --hard master@{"10 minutes ago"}
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How to trace the path in a Breadth-First Search?
... found
if node == end:
return path
# enumerate all adjacent nodes, construct a new path and push it into the queue
for adjacent in graph.get(node, []):
new_path = list(path)
new_path.append(adjacent)
queue.append(new_path)
prin...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...e special [[Get]] internal method defined below.
b. Return the result of calling the get internal method using base as its this value, and passing
GetReferencedName(V) for the argument
Or in other words, a string has a primitive base, which calls back the internal get method and ends up looking ...
How do I join two lists in Java?
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Gawd, that's a thing in Java 8? Technically you win I guess, but that's a heck of a long line :-)
– Robert Atkins
Sep 9 '13 at 20:03
4
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Output to the same line overwriting previous output?
...o need to import the sys module for this sort of simple usage. print() actually has a number of keyword arguments which can be used to greatly simplify code.
To use the same code on Python 2.6+, put the following line at the top of the file:
from __future__ import print_function
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How to limit setAccessible to only “legitimate” uses?
...hat kind of an architecture.
If you're distributing a software component called foo.jar to the people of the world, you're completely at their mercy anyway. They could modify the class definitions inside your .jar (through reverse engineering or direct bytecode manipulation). They could run your co...
Cleaning up the iPhone simulator
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The simulator installs apps into:
"$HOME/Library/Application Support/iPhone Simulator/User/Applications"
Also check:
"$HOME/Library/Developer/CoreSimulator/Devices"
The GUID files and directories match up to the simulator's installed app...
Create Git branch with current changes
...be easy. After a while I realized it would take more work and I want to do all this work in a new branch.
5 Answers
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Ruby class instance variable vs. class variable
...n store something common to that class without having sub-classes automatically also get them (and vice-versa). With class variables, you have the convenience of not having to write self.class from an instance object, and (when desirable) you also get automatic sharing throughout the class hierarchy...
What is the Java equivalent for LINQ? [closed]
...cification, not an implementation... Lambda expressions is a part of LINQ. All projects trying to port LINQ to Java are implementations for a concrete scenario (SQL, Objects...) but does not covr the main goal of LINQ: Integrate the Language Query in the code. Due to this, there is no real alternati...