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How can you encode a string to Base64 in JavaScript?
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You can use btoa() and atob() to convert to and from base64 encoding.
There appears to be some confusion in the comments regarding what these functions accept/return, so…
btoa() accepts a “string” where each character represents an 8-bit byte – if...
How to round a number to n decimal places in Java
What I would like is a method to convert a double to a string which rounds using the half-up method - i.e. if the decimal to be rounded is 5, it always rounds up to the next number. This is the standard method of rounding most people expect in most situations.
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Why is “if not someobj:” better than “if someobj == None:” in Python?
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In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm :
If the object has a __nonzero__ special method (as do...
How do I get the directory that a program is running from?
...SI characters in the path. You probably should use GetModuleFileNameW and convert it to UTF-8 explicitly (being careful to convert it back whenever you need to issue a filesystem command).
– Adrian McCarthy
Oct 24 '13 at 18:32
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How to set selected value on select using selectpicker plugin from bootstrap
I'm using the Bootstrap-Select plugin like this:
18 Answers
18
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set the width of select2 input (through Angular-ui directive)
I have problem making this plunkr (select2 + angulat-ui) work.
11 Answers
11
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What's the opposite of chr() in Ruby?
In many languages there's a pair of functions, chr() and ord() , which convert between numbers and character values. In some languages, ord() is called asc() .
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jQuery - getting custom attribute from selected option
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You're adding the event handler to the <select> element.
Therefore, $(this) will be the dropdown itself, not the selected <option>.
You need to find the selected <option>, like this:
var option = $('option:selected', this).attr('mytag');
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How do I change an HTML selected option using JavaScript?
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document.getElementById('personlist').getElementsByTagName('option')[11].selected = 'selected'
to
document.getElementById('personlist').value=Person_ID;
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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')) ....