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How to represent empty char in Java Character class
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What does '\0' exactly mean? @AVD
– cinnamon toast
Dec 28 '12 at 3:29
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run main class of Maven project [duplicate]
...cation that is built with Maven. Is there a way that the main class (which doesn't require any arguments) can be run from the command-line using a maven command like:
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How to write DataFrame to postgres table?
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Note: to_sql does not export array types in postgres.
– Saurabh Saha
Jun 20 '19 at 13:25
1
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Bootstrap 3 Navbar with Logo
...put the image inside an anchor tag is beacause that's how the Boostrap doc does it: getbootstrap.com/components/#navbar-brand-image
– cafonso
Apr 8 '15 at 8:41
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How to check whether a Storage item is set?
...ethod in the WebStorage specification, explicitly returns null if the item does not exist:
... If the given key does not exist in the list associated with the object then this method must return null. ...
So, you can:
if (localStorage.getItem("infiniteScrollEnabled") === null) {
//...
}
S...
Logout: GET or POST?
...uthentication information on every request.
Arguably, if your application does create the illusion of being logged in, then you should be able to to "log out" using javascript. No round trip required.
Fielding Dissertation - Section 5.1.3
each request from client to server
must contain al...
How to create a file in Ruby
...n empty file for writing.
a - Append to a file.The file is created if it does not exist.
r+ - Open a file for update both reading and writing. The file must exist.
w+ - Create an empty file for both reading and writing.
a+ - Open a file for reading and appending. The file is created if it do...
Git: updating remote branch information
...mote_name/branch_name
you only remove your local checkout. This command doesn't do anything to the remote repository, which is why it still shows up.
Solution:
git push origin :branch_name
will remove the the remote branch (note the ':'), and
git branch -d branch_name
will remove your loca...
An invalid form control with name='' is not focusable
... attribute.
To solve the problem, if you have a button on your page that does something else other than submit or reset, always remember to do this: <button type="button">.
Also see https://stackoverflow.com/a/7264966/1356062
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When to Redis? When to MongoDB? [closed]
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MongoDB doesn't enforce a schema, but I'd like to see a case where someone uses it without a schema...it's all how you define the word schema
– Robbie Guilfoyle
Oct 15 '14 at 19:14
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