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In where shall I use isset() and !empty()
...t() is not an effective way to validate text inputs and text boxes from a HTML form.
17 Answers
...
How to close current tab in a browser window?
...ose_window() {
if (confirm("Close Window?")) {
close();
}
}
with HTML:
<a href="javascript:close_window();">close</a>
or:
<a href="#" onclick="close_window();return false;">close</a>
You return false here to prevent the default behavior for the event. Otherwis...
Read .mat files in Python
...Official SciPy.io tutorial: docs.scipy.org/doc/scipy/reference/tutorial/io.html
– Franck Dernoncourt
Mar 17 '14 at 14:09
19
...
Shuffling a list of objects
... len(a) as the sample size. See https://docs.python.org/3.6/library/random.html#random.sample for the Python documentation.
Here's a simple version using random.sample() that returns the shuffled result as a new list.
import random
a = range(5)
b = random.sample(a, len(a))
print a, b, "two list s...
deny direct access to a folder and file by htaccess
... then you can define a command as follows:
ErrorDocument 404 "/errors/404.html"
It will redirect to the /errors/404.html and show the custom page not found screen.
CSS last-child selector: select last-element of specific class, not last child inside of parent?
...s now in reversed order.
Here is a working example for you:
<!doctype html>
<head><title>CSS Test</title>
<style type="text/css">
.some-class { margin: 0; padding: 0 20px; list-style-type: square; }
.lfloat { float: left; display: block; }
.rfloat { float: right; disp...
All falsey values in JavaScript
...b)
"", '' and `` - strings of length 0
null
undefined
NaN
document.all (in HTML browsers only)
This is a weird one. document.all is a falsey object, with typeof as undefined. It was a Microsoft-proprietory function in IE before IE11, and was added to the HTML spec as a "willful violation of the J...
AngularJS : ng-model binding not updating when changed with jQuery
This is my HTML:
10 Answers
10
...
On a CSS hover event, can I change another div's styling? [duplicate]
...
Yes, you can do that, but only if #b is after #a in the HTML.
If #b comes immediately after #a: http://jsfiddle.net/u7tYE/
#a:hover + #b {
background: #ccc
}
<div id="a">Div A</div>
<div id="b">Div B</div>
That's using the adjacent sibling combinat...
Javascript for “Add to Home Screen” on iPhone?
... users to bookmark the app to their device's home screen. The library uses HTML5 local storage to track whether the promo has been displayed already, to avoid constantly nagging users.
The current implementation of this library specifically targets Mobile Safari, the web browser used on iPhone and i...