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How to get the browser viewport dimensions?
...nd @media (height) values
const vw = Math.max(document.documentElement.clientWidth || 0, window.innerWidth || 0)
const vh = Math.max(document.documentElement.clientHeight || 0, window.innerHeight || 0)
window.innerWidth and window.innerHeight
gets CSS viewport @media (width) and @media (height) ...
Set opacity of background image without affecting child elements
...
You can use CSS linear-gradient() with rgba().
div {
width: 300px;
height: 200px;
background: linear-gradient(rgba(255,255,255,.5), rgba(255,255,255,.5)), url("https://i.imgur.com/xnh5x47.jpg");
}
span {
background: black;
color: ...
How can I position my div at the bottom of its container?
..., for any amount of content, for any size footer, on every browser... even IE6.
If you're cringing at the thought of using a table for layout, take a second to ask yourself why. CSS was supposed to make our lives easier -- and it has, overall -- but the fact is that even after all these years, it's...
Iterate over a Javascript associative array in sorted order
...his does not work in very old browsers not supporting EcmaScript5, notably IE6, 7 and 8. For detailed up-to-date statistics, see this table)
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Determine whether an array contains a value [duplicate]
...
Note that indexOf on arrays is not implemented in IE, but you can define it yourself
– RaYell
Jul 25 '09 at 8:36
7
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Submitting a form by pressing enter without a submit button
...'d get graceful degradation when CSS is disabled.
Update - Workaround for IE7
As suggested by Bryan Downing + with tabindex to prevent tab reach this button (by Ates Goral):
<input type="submit"
style="position: absolute; left: -9999px; width: 1px; height: 1px;"
tabindex="-1" /&...
Limit file format when using ?
... filter in the file select dialog box of the OS. For example,
<!-- (IE 10+, Edge (EdgeHTML), Edge (Chromium), Chrome, Firefox 42+) -->
<input type="file" accept=".xls,.xlsx" />
should provide a way to filter out files other than .xls or .xlsx. Although the MDN page for input el...
Load and execution sequence of a web page?
...iles can be download simultaneously because CSS rules are always being applied - meaning to say elements are always repainted with the freshest CSS rules defined - thus making it unblocking.
An element will only be available in the DOM after it has been parsed. Thus when working with a specific elem...
How to check if an object is an array?
...sers you can do
Array.isArray(obj)
(Supported by Chrome 5, Firefox 4.0, IE 9, Opera 10.5 and Safari 5)
For backward compatibility you can add the following
# only implement if no native implementation is available
if (typeof Array.isArray === 'undefined') {
Array.isArray = function(obj) {
...
Dynamically load JS inside JS [duplicate]
...se { jQuery.ajax({...}); } }
– Terry Riegel
Apr 8 '15 at 14:40
71
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