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Convert Java Array to Iterable
I have an Array of primitives, for example for int, int[] foo. It might be a small sized one, or not.
10 Answers
...
Why are Perl 5's function prototypes bad?
...ard to pass parameters from arrays. For example:
my @array = qw(a b c);
foo(@array);
foo(@array[0..1]);
foo($array[0], $array[1], $array[2]);
sub foo ($;$$) { print "@_\n" }
foo(@array);
foo(@array[0..1]);
foo($array[0], $array[1], $array[2]);
prints:
a b c
a b
a b c
3
b
a b c
along with 3...
What is the best practice for making an AJAX call in Angular.js?
...rvice
module.factory('myService', function($http) {
return {
getFoos: function() {
//return the promise directly.
return $http.get('/foos')
.then(function(result) {
//resolve the promise as the data
...
Add new field to every document in a MongoDB collection
...s if the specified field does not exist.
Check out this example:
> db.foo.find()
> db.foo.insert({"test":"a"})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> item = db.foo.findOne()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> db...
Can ordered list produce result that looks like 1.1, 1.2, 1.3 (instead of just 1, 2, 3, …) with css?
...rical interest only.
If the browser supports content and counter,
.foo {
counter-reset: foo;
}
.foo li {
list-style-type: none;
}
.foo li::before {
counter-increment: foo;
content: "1." counter(foo) " ";
}
<ol class="foo">
<li>uno</li>
<li>dos&...
How to detect if a function is called as constructor?
...flect.construct, which acts like new), otherwise it's undefined.
function Foo() {
if (new.target) {
console.log('called with new');
} else {
console.log('not called with new');
}
}
new Foo(); // "called with new"
Foo(); // "not called with new"
Foo.call({}); // "not calle...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
....475 -0.47
3 G H 1 1.480000 -0.630 -0.63
Footnotes
The code used to generate the test data is shown below:
In [1]: import numpy as np
...: import pandas as pd
...:
...: keys = np.array([
...: ['A', 'B'],
...: ['A', 'B'],
...: ...
Find JavaScript function definition in Chrome
...
Lets say we're looking for function named foo:
(open Chrome dev-tools),
Windows: ctrl + shift + F, or macOS:
cmd + optn + F. This opens a window for searching across all scripts.
check "Regular expression" checkbox,
search for foo\s*=\s*function (searches for foo ...
How can I check if a command exists in a shell script? [duplicate]
..., ksh or sh (as provided by dash), the following should work:
if ! type "$foobar_command_name" > /dev/null; then
# install foobar here
fi
For a real installation script, you'd probably want to be sure that type doesn't return successfully in the case when there is an alias foobar. In bash yo...
JavaScript by reference vs. by value [duplicate]
...its properties - it adds
// a new property b[b.length] with the value "foo".
// So the object referenced by b has been changed.
b.push("foo");
// The "first" property of argument c has been changed.
// So the object referenced by c has been changed (unless c is a primitive)
c...