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How can I output leading zeros in Ruby?
...counter is known (e.g., n = 3 for counters 1..876), you can do
str = "file_" + i.to_s.rjust(n, "0")
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Is null an Object?
...ype null
According to OpenJDKs 12.0.1 javac it is:
true.toString(); // error: boolean cannot be dereferenced
null.toString(); // error: <null> cannot be dereferenced
Where the angle brackets imply that null is of an other than a primitive type. And according to JLS 4.1:
There are tw...
How do I remove/delete a virtualenv?
...em to set up the environment in the first place, which would usually be an error.
– tripleee
Apr 13 '19 at 14:40
...
How to solve Operator '!=' cannot be applied to operands of type 'T' and 'T' [duplicate]
...
public class Test<T>
{
public T Value
{
get => _Value;
set
{
// operator== is undefined for generic T; EqualityComparer solves this
if (!EqualityComparer<T>.Default.Equals(_Value, value))
{
_Valu...
Is inject the same thing as reduce in ruby?
... If you want to create your own aliases, you may be interested in alias_method.
– Nick McCurdy
Oct 25 '13 at 2:16
...
How to open a URL in a new Tab using JavaScript or jQuery? [duplicate]
...
Use window.open():
var win = window.open('http://stackoverflow.com/', '_blank');
if (win) {
//Browser has allowed it to be opened
win.focus();
} else {
//Browser has blocked it
alert('Please allow popups for this website');
}
Depending on the browsers implementation this will w...
How can I add a PHP page to WordPress?
...und that this approach works best, in your .php file:
<?php
require_once(dirname(__FILE__) . '/wp-config.php');
$wp->init();
$wp->parse_request();
$wp->query_posts();
$wp->register_globals();
$wp->send_headers();
// Your WordPress functions here...
...
How to send a correct authorization header for basic authentication
...n(function ok(jsonData) {
console.dir(jsonData);
})
.catch(function fail(error) {
// handle error
});
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Writing to output window of Visual Studio
...ied Debug.Write , Console.Write , and Trace.Write . It does not give an error, but it does not print anything either.
13...
What are some good Python ORM solutions? [closed]
...oreignKeyField(Blog)
title = CharField()
body = TextField()
pub_date = DateTimeField(default=datetime.datetime.now)
# query it like django
Entry.filter(blog__name='Some great blog')
# or programmatically for finer-grained control
Entry.select().join(Blog).where(Blog.name == 'Some aweso...