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What is NODE_ENV and how to use it in Express?
...y set NODE_ENV for your environment, it will be undefined if you access it from process.env, there is no default.
Setting NODE_ENV
How to actually set the environment variable varies from operating system to operating system, and also depends on your user setup.
If you want to set the environment va...
Android: Clear Activity Stack
...licated. When I click the Logout application navigates to login Screen and from there user can exit by cancel button (calling system.exit(0) )
...
how to get the one entry from hashmap without iterating
Is there a elegant way of obtaining only one Entry<K,V> from HashMap, without iterating, if key is not known.
14 An...
What's the advantage of Logic-less template (such as mustache)?
...
In other words, it prevents you from shooting yourself in the foot. In the old JSP days, it was very common to have JSP files sprinkled with Java code, which made refactoring much harder, since you had your code scattered.
If you prevent logic in templates...
Moment.js transform to date object
...
Use this to transform a moment object into a date object:
From http://momentjs.com/docs/#/displaying/as-javascript-date/
moment().toDate();
Yields:
Tue Nov 04 2014 14:04:01 GMT-0600 (CST)
share
...
Still Reachable Leak detected by Valgrind
...an cause. For instance, there is normally no potential for heap exhaustion from "still reachable" blocks. This is because these blocks are usually one-time allocations, references to which are kept throughout the duration of the process's lifetime. While you could go through and ensure that your pro...
How do I efficiently iterate over each entry in a Java Map?
...p.entrySet()) {
i += pair.getKey() + pair.getValue();
}
Using forEach from Java 8
final long[] i = {0};
map.forEach((k, v) -> i[0] += k + v);
Using keySet and foreach
long i = 0;
for (Integer key : map.keySet()) {
i += key + map.get(key);
}
Using keySet and iterator
long i = 0;
Iter...
Matplotlib: “Unknown projection '3d'” error
...ng using the projection keyword argument:
import matplotlib.pyplot as plt
from mpl_toolkits.mplot3d import axes3d, Axes3D #<-- Note the capitalization!
fig = plt.figure()
ax = Axes3D(fig) #<-- Note the difference from your original code...
X, Y, Z = axes3d.get_test_data(0.05)
cset = ax.con...
How to use git merge --squash?
...aster
git merge --squash bugfix
git commit
This will take all the commits from the bugfix branch, squash them into 1 commit, and merge it with your master branch.
Explanation:
git checkout master
Switches to your master branch.
git merge --squash bugfix
Takes all commits from the bugfix branch a...
Shell Script: Execute a python program from within a shell script
...
then run it
$ ./job.sh
Method 2 (BETTER) - Make the python itself run from shell:
Modify your script hello.py and add this as the first line
#!/usr/bin/env python
mark it executable using
$ chmod +x hello.py
then run it
$ ./hello.py
...