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Checking the equality of two slices
...swer, and more highly voted is simply maddening...
– allyourcode
Feb 12 '15 at 7:54
5
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How do I delete a fixed number of rows with sorting in PostgreSQL?
...erm row identifier.
There's also oid but that only exists if you specifically ask for it when you create the table.
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Set size on background image with CSS?
...S3 unleash the powers
This is possible to do in CSS3 with background-size.
All modern browsers support this, so unless you need to support old browsers, this is the way to do it.
Supported browsers:
Mozilla Firefox 4.0+ (Gecko 2.0+), Microsoft Internet Explorer 9.0+, Opera 10.0+, Safari 4.1+ (webki...
How to install the JDK on Ubuntu Linux
I am trying to install the Java Development Kit (JDK) on Ubuntu Linux distribution, but I am unable to install it.
33 A...
Programmatically retrieve memory usage on iPhone
...trieve the amount of memory my iPhone app is using at anytime, programmatically. Yes I'm aware about ObjectAlloc/Leaks. I'm not interested in those, only to know if it's possible to write some code and get the amount of bytes being used and report it via NSLog.
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Default value of a type at Runtime [duplicate]
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There's really only two possibilities: null for reference types and new myType() for value types (which corresponds to 0 for int, float, etc) So you really only need to account for two cases:
object GetDefaultValue(Type t)
{
if (t...
Get the index of the object inside an array, matching a condition
...lorer, there's a polyfill on the linked page.
Performance note
Function calls are expensive, therefore with really big arrays a simple loop will perform much better than findIndex:
let test = [];
for (let i = 0; i < 1e6; i++)
test.push({prop: i});
let search = test.length - 1;...
Understanding prototypal inheritance in JavaScript
...ctor or in the prototype. Using the prototype is more efficient because usually you need a function only once per type.
The new call in javascript automatically sets the constructor in the prototype. If you are overwriting the prototype so you have to set the constructor manually.
Inheritance in j...
JSON datetime between Python and JavaScript
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The lambda can be adapted to call the base implementation on non-datetime types, so TypeError can be raised if needed: dthandler = lambda obj: obj.isoformat() if isinstance(obj, datetime) else json.JSONEncoder().default(obj)
– Pascal...
HTML/Javascript change div content
...L rather than innerText and textContent because innerHTML is compatible to all browsers.
– Minh Triet
Jun 26 '13 at 1:59
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