Tag: dom

57 votes
21 answers
597 views
Generate a random point within a circle (uniformly)

I need to generate a uniformly random point within a circle of radius R. I realize that by just picking a uni

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Wilber
0 1 0 9
asked 07 September, 2021
61 votes
28 answers
1.6K views
Understanding "randomness"

I can't get my head around this, which is more random? rand() OR: rand() * rand() I´m finding it a

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Thurman
0 1 0 9
asked 07 September, 2021
62 votes
11 answers
3.1K views
Sample random rows in dataframe

I am struggling to find the appropriate function that would return a specified number of rows picked up random

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Luis
0 1 0 9
asked 07 September, 2021
56 votes
6 answers
729 views
How to send a correct authorization header for basic authentication

I am trying to POST data from my API but I can't pass the basic authentication. I try: $.ajax({ type: &

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Kristopher
0 1 0 9
asked 07 September, 2021
64 votes
30 answers
2.3K views
How to enable CORS in ASP.net Core WebAPI

What I am trying to do I have a backend ASP.Net Core Web API hosted on an Azure Free Plan (Source Code: https

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Corey
0 1 0 9
asked 07 September, 2021
62 votes
16 answers
1.9K views
Better way to shuffle two numpy arrays in unison

I have two numpy arrays of different shapes, but with the same length (leading dimension). I want to shuffle e

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Wilfredo
0 1 0 9
asked 07 September, 2021
55 votes
13 answers
1.2K views
Invariant Violation: _registerComponent(...): Target container is not a DOM element

I get this error after a making trivial React example page: Uncaught Error: Invariant Violation: _register

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Luis
0 1 0 9
asked 07 September, 2021
58 votes
30 answers
702 views
Detect click outside React component

I'm looking for a way to detect if a click event happened outside of a component, as described in this ar

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Xavier
0 1 0 9
asked 07 September, 2021
54 votes
25 answers
2.9K views
How does one generate a random number in Apple's Swift language?

I realize the Swift book provided an implementation of a random number generator. Is the best practice to cop

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Adolfo
0 1 0 9
asked 07 September, 2021
54 votes
28 answers
997 views
Random record from MongoDB

I am looking to get a random record from a huge collection (100 million records). What is the fastest and most

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Karolyn
0 1 0 9
asked 07 September, 2021
62 votes
18 answers
1.2K views
Origin is not allowed by Access-Control-Allow-Origin

I'm making an Ajax.request to a remote PHP server in a Sencha Touch 2 application (wrapped in PhoneGap).

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Patsy
0 1 0 9
asked 07 September, 2021
57 votes
14 answers
2.3K views
jQuery AJAX cross domain

Here are two pages, test.php and testserver.php. test.php <script src="scripts/jq.js" type="text/javascri

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Hildegard
0 1 0 9
asked 07 September, 2021
57 votes
13 answers
1.4K views
On - window.location.hash - Change?

I am using Ajax and hash for navigation. Is there a way to check if the window.location.hash changed like th

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Dorian
0 1 0 9
asked 07 September, 2021
59 votes
17 answers
727 views
How do I send a cross-domain POST request via JavaScript?

How do I send a cross-domain POST request via JavaScript? Notes - it shouldn't refresh the page, and I n

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Margo
0 1 0 9
asked 07 September, 2021
51 votes
29 answers
2.2K views
Retrieve the position (X,Y) of an HTML element relative to the browser window

I want to know how to get the X and Y position of HTML elements such as img and div in JavaScript relative to

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Carmelina
0 1 0 9
asked 07 September, 2021
54 votes
15 answers
2.8K views
Why does this code using random strings print "hello world"?

The following print statement would print "hello world". Could anyone explain this? System.out.println(random

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Carmelina
0 1 0 9
asked 07 September, 2021
63 votes
30 answers
2.2K views
How to generate a random alpha-numeric string

I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my si

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Arline
0 1 0 9
asked 07 September, 2021
55 votes
30 answers
2.2K views
How do I generate random integers within a specific range in Java?

How do I generate a random int value in a specific range? I have tried the following, but those do not work: A

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Patsy
0 1 0 9
asked 07 September, 2021
57 votes
16 answers
1.1K views
How do I set/unset a cookie with jQuery?

How do I set and unset a cookie using jQuery, for example create a cookie named test and set the value to 1?

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Omar
0 1 0 9
asked 07 September, 2021
55 votes
14 answers
2.3K views
jQuery document.createElement equivalent?

I'm refactoring some old JavaScript code and there's a lot of DOM manipulation going on. var d = do

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Brianne
0 1 0 9
asked 07 September, 2021