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How do JavaScript closures work?
...reated. This chain is called the scope chain.
In the following code, inner forms a closure with the lexical environment of the execution context created when foo is invoked, closing over variable secret:
function foo() {
const secret = Math.trunc(Math.random()*100)
return function inner() {
...
jQuery counting elements by class - what is the best way to implement this?
...me class and then I'm going to use it to be added onto a name for an input form. Basically I'm allowing users to click on a <span> and then by doing so add another one for more of the same type of items. But I can't think of a way to count all of these simply with jQuery/JavaScript.
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Get selected option from select element
...ve stored the value in your variable, the next step would be to send the information stored in the variable to the form field or HTML element of your choosing. It may be a div p or custom element.
i.e. <p></p> OR <div></div>
You would use:
$('p').html(iterations); O...
Get selected value of a dropdown's item using jQuery
...xt();
return my;
}
It saves me a ton of precious time, especially on form-heavy applications!
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Why is an int in OCaml only 31 bits?
...le integer.
Also, you cannot pass such an integer object to the CPU to perform fast integer arithmetic. If you want to add two integers, you really only have two pointers, which point to the beginning of the object headers of the two integer objects you want to add. So, you first need to perform in...
jQuery access input hidden value
...
There's a jQuery selector for that:
// Get all form fields that are hidden
var hidden_fields = $( this ).find( 'input:hidden' );
// Filter those which have a specific type
hidden_fields.attr( 'text' );
Will give you all hidden input fields and filter by those with a sp...
Javascript regex returning true.. then false.. then true.. etc [duplicate]
I have a strange problem with the validation I am writing on a form. It is a 'Check Username' button next to an input. The input default value is the username for example 'betamax'. When I press 'Check Username' it passes the regex and sends the username to the server. The server behaves as expected...
Converting Integer to String with comma for thousands
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System.out.println(NumberFormat.getNumberInstance(Locale.US).format(35634646));
Output: 35,634,646
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Single Page Application: advantages and disadvantages [closed]
...es not mean that you open all the endpoints for all the users I mean I use forms auth with my spa web site.
- in the probably most used SPA framework Angular JS the dev can load the entire html temple from the web site so that can be done depending on the users authentication level. pre loading ...
Is there any difference between “!=” and “” in Oracle Sql?
...
Actually, there are four forms of this operator:
<>
!=
^=
and even
¬= -- worked on some obscure platforms in the dark ages
which are the same, but treated differently when a verbatim match is required (stored outlines or cached queries)....