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Rails 3: “field-with-errors” wrapper changes the page appearance. How to avoid this?
... Anurag: if html_tag happens to be nil, or anything other than a string, then a plain html_tag.html_safe would rais an error. Putting it in "#{html_tag}" implicitly calls html_tag.to_s, which hopefully will return a string, which will then be able to respond to html_safe
– so...
Pure JavaScript Send POST Data Without a Form
...ch("/post/data/here", {
method: "POST",
body: JSON.stringify(data)
}).then(res => {
console.log("Request complete! response:", res);
});
If you are as lazy as me (or just prefer a shortcut/helper):
window.post = function(url, data) {
return fetch(url, {method: "POST", body: JSON.strin...
How to use the new affix plugin in twitter's bootstrap 2.1.0?
... down it should first scroll along until reaching the top of the page, and then stick there fixed for further scrolldowns.
...
How do you get the logical xor of two variables in Python?
...
If you're already normalizing the inputs to booleans, then != is xor.
bool(a) != bool(b)
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Center content of UIScrollView when smaller
...ming in the ScrollViewDelegate.
If zoomed image is smaller than scrollview then adjust subview.center else center is (0,0).
- (void)scrollViewDidZoom:(UIScrollView *)scrollView
{
UIView *subView = [scrollView.subviews objectAtIndex:0];
CGFloat offsetX = MAX((scrollView.bounds.size.width -...
Conversion of a datetime2 data type to a datetime data type results out-of-range value
I've got a datatable with 5 columns, where a row is being filled with data then saved to the database via a transaction.
26...
How can I do division with variables in a Linux shell?
...ready mentioned in other threads:
calc(){ awk "BEGIN { print "$*" }"; }
then you can simply type :
calc 7.5/3.2
2.34375
In your case it will be:
x=20; y=3;
calc $x/$y
or if you prefer, add this as a separate script and make it available in $PATH so you will always have it in your local sh...
Multiple file upload in php
...
Multiple files can be selected and then uploaded using the
<input type='file' name='file[]' multiple>
The sample php script that does the uploading:
<html>
<title>Upload</title>
<?php
session_start();
$target=$_POST['direct...
How can I exclude directories from grep -R?
...r \( -name foo -prune \) -o \( -name bar -prune \) -o -name "*.sh" -print
Then combine find and the non-recursive use of grep, as a portable solution :
find /dir \( -name node_modules -prune \) -o -name "*.sh" -exec grep --color -Hn "your text to find" {} 2>/dev/null \;
SOLUTION 2 (using the --...
Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...luding the check) be a static method of BusinessObject in the first place. Then, have the constructor private, and everyone else will be forced to use the static method.
public class BusinessObject
{
public static Create (string myProperty)
{
if (...)
return new BusinessObject (myProp...