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typeof for RegExp
...
You can use instanceof operator:
var t = /^foo(bar)?$/i;
alert(t instanceof RegExp);//returns true
In fact, that is almost the same as:
var t = /^foo(bar)?$/i;
alert(t.constructor == RegExp);//returns true
Keep in mind that as RegExp is not a primitive data type, it is not pos...
Is right click a Javascript event?
...if ("button" in e) // IE, Opera
isRightMB = e.button == 2;
alert("Right mouse button " + (isRightMB ? "" : " was not") + "clicked!");
}
window.oncontextmenu - MDC
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Bind a function to Twitter Bootstrap Modal Close
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Bootstrap 4
$('#my-modal').on('hidden.bs.modal', function () {
window.alert('hidden event fired!');
});
See this JSFiddle for a working example:
https://jsfiddle.net/6n7bg2c9/
See the Modal Events section of the docs here:
https://getbootstrap.com/docs/4.3/components/modal/#events
...
How to obtain the query string from the current URL with JavaScript?
... url = window.location.search;
url = url.replace("?", ''); // remove the ?
alert(url); //alerts ProjectID=462 is your case
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CSS3 transition events
...d.
box.addEventListener( 'webkitTransitionEnd',
function( event ) { alert( "Finished transition!" ); }, false );
Mozilla
There is a single event that is fired when transitions complete. In Firefox, the event is transitionend, in Opera, oTransitionEnd, and in WebKit it is webkitTransitio...
Failed to load resource under Chrome
...inspector a lot and cant find the network tab. I have elements, resources, scripts, timeline profile, storage, audits and console. I will google around and try to understand why I do not have a network tab.
– user425445
Dec 25 '10 at 16:06
...
Reverse of JSON.stringify?
...lo":"world"}';
var parsed = new Function('return ' + stringifiedJSON)();
alert(parsed.hello);
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What is jQuery Unobtrusive Validation?
...own very nicely in this Pluralsight video in the section on " AJAX and JavaScript".
Basically, it is simply Javascript validation that doesn't pollute your source code with its own validation code. This is done by making use of data- attributes in HTML.
...
javascript scroll event for iPhone/iPad?
...ing the handler works e.g.
window.addEventListener('scroll', function() { alert("Scrolled"); });
// or
$(window).scroll(function() { alert("Scrolled"); });
// or
window.onscroll = function() { alert("Scrolled"); };
// etc
(See also https://developer.apple.com/library/content/documentation/AppleA...
What's the difference between a continuation and a callback?
...inuation never returns.
Consider the function:
function add(x, y, c) {
alert("before");
c(x+y);
alert("after");
}
(I use Javascript syntax even though Javascript doesn't actually support first-class continuations because this was what you gave your examples in, and it will be more compr...