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What does !! mean in ruby?
...an value, it's redundant (just use the value). If you don't, you can use !(foo.nil? || foo == false) — more verbose, yes, but less cryptic.
– David Moles
May 28 at 23:54
...
How to execute a file within the python interpreter?
...ve the interpreter open after execution terminates using the -i option:
| foo.py |
----------
testvar = 10
def bar(bing):
return bing*3
--------
$ python -i foo.py
>>> testvar
10
>>> bar(6)
18
sha...
How can I implement prepend and append with regular JavaScript?
...he element to be inserted.
An example of usage:
document.getElementById("foo").insertAdjacentHTML("beforeBegin",
"<div><h1>I</h1><h2>was</h2><h3>inserted</h3></div>");
DEMO
Caution: insertAdjacentHTML does not preserve listeners that whe...
How to add elements to an empty array in PHP?
...e(best) when keys are not important:
$cart = [];
$cart[] = 13;
$cart[] = "foo";
$cart[] = obj;
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Is there “0b” or something similar to represent a binary number in Javascript
... to pass a binary string to the parseInt method along with the radix:
var foo = parseInt('1111', 2); // foo will be set to 15
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Passing an array to a function with variable number of args in Swift
... Great! This works with multiple (named) parameters, too; e.g.: func sumOf(foo numbers: Int..., bar: Bool) -> Int {}; requires typealias Function = (foo: [Int], bar: Bool) -> Int;
– ThomasR
Sep 11 '16 at 9:45
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AngularJS - Trigger when radio button is selected
...sing ng-change directive:
<input type="radio" ng-model="value" value="foo" ng-change='newValue(value)'>
and then, in a controller:
$scope.newValue = function(value) {
console.log(value);
}
Here is the jsFiddle: http://jsfiddle.net/ZPcSe/5/
2) Watching the model for changes. This d...
Is there any publicly accessible JSON data source to test with real world data? [closed]
... The old API supports JSONP in The Usual Way -- pass ?callback=foo and you get foo({...}) instead of var tumblr_api_read={...}. The API docs don't mention CORS support so I strongly suspect most users would be loading the content via JSONP anyway.
– Coderer
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How to read if a checkbox is checked in PHP?
...' or '1' value in the resulting GET or POST
<input type="hidden" name="foo" value="0" />
<input type="checkbox" name="foo" value="1">
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Runnable with a parameter?
...e review would be immediately rejected, and this would be suggested:
void foo(final String str) {
Thread t = new Thread(() -> someFunc(str));
t.start();
}
As before, details like handling that thread in a meaningful way is left as an exercise to the reader. But to put it bluntly, if yo...