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How to delete a localStorage item when the browser window/tab is closed?
My Case: localStorage with key + value that should be deleted when browser is closed and not single tab.
19 Answers
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is there an virtual environment for node.js?
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If having system wide npm packages is your main issue, then maybe consider using the very cool 'bundle' command with npm. This is closer to freezing gems or using bundler in rails, rather than rvm.
It's super easy. Just create a package.json file:
{ "name": ...
Why should I use the keyword “final” on a method parameter in Java?
I can't understand where the final keyword is really handy when it is used on method parameters.
12 Answers
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How can I transition height: 0; to height: auto; using CSS?
...hing bigger than your box will ever get.
See JSFiddle demo provided by Chris Jordan in another answer here.
#menu #list {
max-height: 0;
transition: max-height 0.15s ease-out;
overflow: hidden;
background: #d5d5d5;
}
#menu:hover #list {
max-height: 500px;
tran...
Rails :include vs. :joins
This is more of a "why do things work this way" question rather than a "I don't know how to do this" question...
8 Answers
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How to enumerate an object's properties in Python?
I C# we do it through reflection. In Javascript it is simple as:
7 Answers
7
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Why doesn't JavaScript support multithreading?
Is it a deliberate design decision or a problem with our current day browsers which will be rectified in the coming versions?
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SQLAlchemy: print the actual query
...ding values, rather than bind parameters, but it's not obvious how to do this in SQLAlchemy (by design, I'm fairly sure).
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Replacing NULL with 0 in a SQL server query
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When you want to replace a possibly null column with something else, use IsNull.
SELECT ISNULL(myColumn, 0 ) FROM myTable
This will put a 0 in myColumn if it is null in the first place.
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What happens when a duplicate key is put into a HashMap?
...And what if even the value repeats? I didn’t find any documentation on this.
12 Answers
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