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What exactly does the .join() method do?
... problem in your case is that a string is itself iterable, giving out each character in turn. Your code breaks down to this:
"wlfgALGbXOahekxSs".join("595")
which acts the same as this:
"wlfgALGbXOahekxSs".join(["5", "9", "5"])
and so produces your string:
"5wlfgALGbXOahekxSs9wlfgALGbXOahekxS...
How to sort an array of integers correctly
...sn't. Confusing for other developers to read your code, just to save a few chars. Don't depend on side effects - code with purpose!
– bambery
Dec 2 '16 at 5:03
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Can I apply the required attribute to fields in HTML5?
How can I check if a user has selected something from a <select> field in HTML5?
13 Answers
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A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
... We should mention that this approach works only for List<CharSequence> or CharSequence[] elements like list or arrays of Strings, StringBuilder.
– Pshemo
Apr 29 '15 at 10:36
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sed or awk: delete n lines following a pattern
...;/div>/,$d' out.txt but it gives error saying : sed: -e expression #1, char 24: extra characters after command Thanks in advance.
– N mol
Aug 24 '13 at 2:37
8
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Why does a base64 encoded string have an = sign at the end
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"One case in which padding characters are required is concatenating multiple Base64 encoded files."
– André Puel
Nov 30 '14 at 19:41
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PHP Replace last occurrence of a String in a String?
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This works as long as there isn't any repeated characters. In my situation I'm striping the page number off the archive date so I have "2015-12/2" and it takes all / and all 2 off the end becoming "2015-1".
– Mike
Jun 3 '16 at 21:00
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HTML entity for the middle dot
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There's actually six variants of this:
char description unicode html html entity utf-8
· Middle Dot U+00B7 &#183; &middot; C2 B7
• Bullet U+2022 &#8226; &bull; ...
Easy way to turn JavaScript array into comma-separated list?
...ut I need to concatenate list of IDs, no chance of commas or other special chars
– davewilliams459
Feb 8 '12 at 15:37
11
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How to check if an option is selected?
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UPDATE
A more direct jQuery method to the option selected would be:
var selected_option = $('#mySelectBox option:selected');
Answering the question .is(':selected') is what you are looking for:
$('#mySelectBox option').each(function() {
if($(this).is(':selected')) ....