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In Python, how do you convert a `datetime` object to seconds?
Apologies for the simple question... I'm new to Python... I have searched around and nothing seems to be working.
10 Answer...
HashSet vs LinkedHashSet
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The answer lies in which constructors the LinkedHashSet uses to construct the base class:
public LinkedHashSet(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor, true); // <-- boolean dummy argument
}
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public LinkedH...
Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy
Just started using Xcode 4.5 and I got this error in the console:
33 Answers
33
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href=“tel:” and mobile numbers
...he country you are in, you still need to dial the national trunk number before the rest of the number. For example, in Australia one would dial:
0 - trunk prefix
2 - Area code for New South Wales
6555 - STD code for a specific telephone exchange
1234 - Telephone Exchange specific extension.
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Is It Possible to Sandbox JavaScript Running In the Browser?
... JavaScript running in the browser to prevent access to features that are normally available to JavaScript code running in an HTML page.
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node.js execute system command synchronously
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Node.js (since version 0.12 - so for a while) supports execSync:
child_process.execSync(command[, options])
You can now directly do this:
const execSync = require('child_process').execSync;
code = execSync('node -v');
and it'll do what you expect. (Defa...
PHP Composer update “cannot allocate memory” error (using Laravel 4)
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A bit old but just in case someone new is looking for a solution, updating your PHP version can fix the issue.
Also you should be committing your composer.lock file and doing a composer install on a production environment which is less resource intensive.
More details here:...
How do I define global variables in CoffeeScript?
On Coffeescript.org:
8 Answers
8
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Consistency of hashCode() on a Java string
...ash code implementation remaining the same, it's now documented behaviour for java.lang.String, so changing it would count as breaking existing contracts.
Wherever possible, you shouldn't rely on hash codes staying the same across versions etc - but in my mind java.lang.String is a special case sim...
Sending a JSON to server and retrieving a JSON in return, without JQuery
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Sending and receiving data in JSON format using POST method
// Sending and receiving data in JSON format using POST method
//
var xhr = new XMLHttpRequest();
var url = "url";
xhr.open("POST", url, true);
xhr.setRequestHeader("Content-Type", "application/json")...