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Check if a variable is a string in JavaScript
... is a String";
var stringObject = new String( "This is a String Object" );
alert(typeof booleanValue) // displays "boolean"
alert(typeof numericalValue) // displays "number"
alert(typeof stringValue) // displays "string"
alert(typeof stringObject) // displays "object"
Example from this webpage. (E...
What is the standard naming convention for html/css ids and classes?
...n use dashes for classes like Bootstrap does. But the ids is more for JavaScript, so i prefer use camelCase in that case.
– glrodasz
Oct 9 '13 at 8:55
3
...
How to append something to an array?
...ar ar1 = [1, 2, 3];
var ar2 = [4, 5, 6];
var ar3 = ar1.concat(ar2);
alert(ar1);
alert(ar2);
alert(ar3);
The concat does not affect ar1 and ar2 unless reassigned, for example:
var ar1 = [1, 2, 3];
var ar2 = [4, 5, 6];
ar1 = ar1.concat(ar2);
alert(ar1);
Lots of great i...
How to implement a confirmation (yes/no) DialogPreference?
...
That is a simple alert dialog, Federico gave you a site where you can look things up.
Here is a short example of how an alert dialog can be built.
new AlertDialog.Builder(this)
.setTitle("Title")
.setMessage("Do you really want to whatever?...
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...
Stopping scripters from slamming your website
...orkshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work with CSS/HTML and am only barely familiar with other technologies. I work closely with the developers and have talked through all of the answers here (and man...
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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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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Bind a function to Twitter Bootstrap Modal Close
...
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
...
Reverse of JSON.stringify?
...lo":"world"}';
var parsed = new Function('return ' + stringifiedJSON)();
alert(parsed.hello);
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