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How to disable all inside a form with jQuery?
...orm elements inside 'target'. See :input:
Matches all input, textarea, select and button elements.
If you only want the <input> elements:
$("#target input").prop("disabled", true);
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What is a Java ClassLoader?
... there is more than one class loader, they are represented in a tree whose root is the bootstrap class loader. Each class loader has a reference to its parent class loader. When a class loader is asked to load a class, it consults its parent class loader before attempting to load the item itself. Th...
How to make a select with array contains value clause in psql
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Try
SELECT * FROM table WHERE arr @> ARRAY['s']::varchar[]
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Can an array be top-level JSON-text?
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Yes, but you should consider making the root an object instead in some scenarios, due to JSON hijacking. This is an information disclosure vulnerability based on overriding the array constructor in JavaScript.
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Maximum Year in Expiry Date of Credit Card
...orget that in most browsers you can still key in the number and it'll auto select.
– Kevin Wiskia
Mar 22 '11 at 19:44
1
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How to check iOS version?
...e if < iOS 4.0, and send it to the Detail View Controller myself in the Root View's -didSelectRowAtIndexPath.
– jww
Jul 17 '11 at 9:36
10
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__proto__ VS. prototype in JavaScript
...nstructor is nothing but the function a itself
and __proto__ points to the root level Object of JavaScript.
Let us see what happens when we use a function with new key word.
var b = new a ('JavaScript');
When JavaScript executes this code it does 4 things:
It creates a new object, an empty obj...
What is the difference between float and double?
...a quadratic equation: x2 − 4.0000000 x + 3.9999999 = 0, the exact roots to 10 significant digits are, r1 = 2.000316228 and r2 = 1.999683772.
Using float and double, we can write a test program:
#include <stdio.h>
#include <math.h>
void dbl_solve(double a, double b, double...
D3.js: How to get the computed width and height for an arbitrary element?
...d height for an arbitrary g element in my SVG because I need to draw a selection marker around it once the user has clicked it.
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Aggregate function in an SQL update query?
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UPDATE t1
SET t1.field1 = t2.field2Sum
FROM table1 t1
INNER JOIN (select field3, sum(field2) as field2Sum
from table2
group by field3) as t2
on t2.field3 = t1.field3
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