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Should I return EXIT_SUCCESS or 0 from main()?
...bout people expecting 0 to be automatically bad is off the mark. Very many APIs use 0 for success, and non-0 for failure, even in the stdlib. E.g. stdlib (fclose(), setvbuf(), ...), POSIX (listen(), pthread_create(), pipe(), ...), and many, many other libraries (e.g. OpenGL [glGetError()], zlib [def...
How to define custom exception class in Java, the easiest way?
...ith you . source : Constructor Summary docs.oracle.com/javase/1.5.0/docs/api/java/lang/Exception.html
– KNU
May 27 '14 at 5:53
Node.js: what is ENOSPC error and how to solve?
...he development server uses inotify to implement hot-reloading. The inotify API allows the development server to watch files and be notified when they change.
The default inotify file watch limit varies from distribution to distribution (8192 on Fedora). The needs of the development server often exc...
Boolean vs boolean in Java
...oolean / boolean. Simplicity is the way to go.
If you do not need specific api (Collections, Streams, etc.) and you are not foreseeing that you will need them - use primitive version of it (boolean).
With primitives you guarantee that you will not pass null values. You will not fall in traps like ...
JavaScript: Object Rename Key
...ould be accepted answer, worked great for my use case. I had to convert an API response that was prefixing Country Names with unnecessary string. Turned Object into array of keys and mapped through each key with substring method and returned a new object with new key and value indexed by original ke...
PDO get the last ID inserted
...$db->lastInsertId();
If you want to do it with SQL instead of the PDO API, you would do it like a normal select query:
$stmt = $db->query("SELECT LAST_INSERT_ID()");
$lastId = $stmt->fetchColumn();
share
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How to smooth a curve in the right way?
...models library:
import numpy as np
import pylab as plt
import statsmodels.api as sm
x = np.linspace(0,2*np.pi,100)
y = np.sin(x) + np.random.random(100) * 0.2
lowess = sm.nonparametric.lowess(y, x, frac=0.1)
plt.plot(x, y, '+')
plt.plot(lowess[:, 0], lowess[:, 1])
plt.show()
Finally, if you kno...
Changing Java Date one hour back
... Java SE 9, Java SE 10, Java SE 11, and later - Part of the standard Java API with a bundled implementation.
Java 9 adds some minor features and fixes.
Java SE 6 and Java SE 7
Most of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport.
Android
Later versions o...
Insert auto increment primary key to existing table
... FROM table_name WHERE id = LAST_INSERT_ID() and most programming language APIs offer some function/method to return that value in the application code.
– Michael Berkowski
Jan 24 '18 at 16:06
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Facebook Callback appends '#_=_' to Return URL
...e Facebook callback, which might be helpful in certain circumstances e.g. /api/account/callback#home. When you are redirected back, it'll at least be a hash that corresponds to a known route if you are using backbone.js or similar (not sure about jquery mobile).
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