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Difference between $(this) and event.target?
...presents the element that received the event.
For example:
<!DOCTYPE html>
<html>
<head>
<script>
function mouseDown() {
alert(this);
}
</script>
</head>
<body>
<p onmouseup="mouseDown();a...
Changing image sizes proportionally using CSS?
...t will make the image have the height proportional to the new width.
Ex:
HTML:
<div class="container">
<img src="something.png" />
</div>
<div class="container">
<img src="something2.png" />
</div>
CSS:
.container {
width: 200px;
height: 120px;
}
/...
Why should text files end with a newline?
...ource: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
An incomplete line as:
A sequence of one or more non- <newline> characters at the end of the file.
Source: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_195
A te...
Can jQuery provide the tag name?
I've got several elements on a HTML page which have the same class - but they're different element types. I want to find out the tag name of the element as I loop over them - but .attr doesn't take "tag" or "tagname".
...
How do I change an HTML selected option using JavaScript?
...ptySelectBoxById(eid, value, text) {
document.getElementById(eid).innerHTML = "<option value='" + value + "'>" + text + "</option>";
}
/**
* Reset Select Box
* @param eid Element ID
*/
function resetSelectBoxById(eid) {
document.getElementById(eid).options[0].selected = 'se...
Javascript trick for 'paste as plain text` in execCommand
...board data directly as text, so you don't have to do ugly hacks to replace HTML.
I'm not sure of cross-browser support, though.
editor.addEventListener("paste", function(e) {
// cancel paste
e.preventDefault();
// get text representation of clipboard
var text = (e.originalEvent |...
Scroll to a div using jquery
...e "link" from the ID
id = id.replace("link", "");
// Scroll
$('html,body').animate({
scrollTop: $("#" + id).offset().top
}, 'slow');
}
$("#sidebar > ul > li > a").click(function(e) {
// Prevent a page reload when a link is pressed
e.preventDefault();
// ...
Get the full URL in PHP
...l = "//{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}";
$escaped_url = htmlspecialchars( $url, ENT_QUOTES, 'UTF-8' );
echo '<a href="' . $escaped_url . '">' . $escaped_url . '</a>';
Here are some more details about the issues and edge cases of the //example.com/path/ format
Full v...
application/x-www-form-urlencoded or multipart/form-data?
...you can fill MIME type which suits you). This is also the case for typical HTML representation based webapps (e.g. json payload became very popular for transmitting payload for ajax requests).
Regarding Restful API over HTTP the most popular content-types I came in touch with are application/xml and...
How can you customize the numbers in an ordered list?
...
You can also specify your own numbers in the HTML - e.g. if the numbers are being provided by a database:
ol {
list-style: none;
}
ol>li:before {
content: attr(seq) ". ";
}
<ol>
<li seq="1">Item one</li>
<li seq="20">Ite...