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What is the difference between ndarray and array in numpy?
...o create an array using numpy.ndarray, but it is not the recommended way. From the docstring of numpy.ndarray:
Arrays should be constructed using array, zeros or empty ... The parameters given here refer to a
low-level method (ndarray(...)) for instantiating an array.
Most of the meat of...
JavaScript DOM remove element
...most browsers, there's a slightly more succinct way of removing an element from the DOM than calling .removeChild(element) on its parent, which is to just call element.remove(). In due course, this will probably become the standard and idiomatic way of removing an element from the DOM.
The .remove(...
Java synchronized method lock on object, or method?
...chronize on the whole object, so two thread accessing a different variable from this same object would block each other anyway.
If you want to synchronize only on one variable at a time, so two threads won't block each other while accessing different variables, you have synchronize on them separat...
Django using get_user_model vs settings.AUTH_USER_MODEL
...butes, as well as if you want to define a ForeignKey/ManyToMany-relation.
From the changelog:
get_user_model() can now be called at import time, even in modules that define models.
so... is there still a reason to use settings.AUTH_USER_MODEL? Well, the docs still recommend the settings.AUTH_...
Age from birthdate in python
How can I find an age in python from today's date and a persons birthdate? The birthdate is a from a DateField in a Django model.
...
Bootstrap: Open Another Modal in Modal
...ls to stack as expected, you need to have them ordered in your Html markup from lowest to highest.
$(document).on('hidden.bs.modal', function (event) {
if ($('.modal:visible').length) {
$('body').addClass('modal-open');
}
});
UPDATE: When you have stacked modals, all the back...
How do I check if a number is a palindrome?
...t number system, being able to add will do (think how you commonly convert from decimal to binary - being used to think computation means binary doesn't mean you can't do, e.g., decimal arithmetic (and you can do conversion from binary to decimal without division or modulo 2).
–...
How to commit no change and new message?
...h temporary workflow artifacts and make it hard to separate code revisions from ephemeral cruft.
Other strategies to add metadata to a commit tree include:
Separate branches or lightweight tags that always point to a commit of a particular status (e.g. "last accepted commit" or "current staging co...
Express.js - app.listen vs server.listen
...fig.port, function() {
console.log('Https App started');
});
The app from express will return http server only, you cannot set it in express, so you will need to use the https server command
var express = require('express');
var app = express();
app.listen(1234);
...
How to flip background image using CSS?
...
@JitendraVyas hello from 2016! I was considering suggesting an edit to fix the jsfiddle URL as it still links to different code than is in your answer here - care to edit the post or remove the link? Thanks :)
– totallyNotL...