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Why do access tokens expire?
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This is very much implementation specific, but the general idea is to allow providers to issue short term access tokens with long term refresh tokens. Why?
Many providers support bearer tokens which are very weak security-wise. By making them short-lived and requiring refresh, they limit the ...
Java Class.cast() vs. cast operator
...ject) isn't special to the compiler. It could be optimized when used statically (i.e. Foo.class.cast(o) rather than cls.cast(o)) but I've never seen anybody using it - which makes the effort of building this optimization into the compiler somewhat worthless.
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Define a lambda expression that raises an Exception
...ur goal is to avoid a def, this obviously doesn't cut it. It does, however allow you to conditionally raise exceptions, e.g.:
y = lambda x: 2*x if x < 10 else raise_(Exception('foobar'))
Alternatively you can raise an exception without defining a named function. All you need is a strong stom...
Using margin:auto to vertically-align a div
So I know we can center a div horizontally if we use margin:0 auto; . Should margin:auto auto; work how I think it should work? Centering it vertically as well?
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Get HTML5 localStorage keys
I'm just wondering how to get all key values in localStorage .
12 Answers
12
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Should composer.lock be committed to version control?
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If you update your libs, you want to commit the lockfile too. It basically states that your project is locked to those specific versions of the libs you are using.
If you commit your changes, and someone pulls your code and updates the dependencies, the lockfile should be unmodified. If it is ...
Java and SQLite [closed]
... which uses embedded native SQLite libraries on Windows, Linux, OS X, and falls back to pure Java implementation on other OSes: https://github.com/xerial/sqlite-jdbc (formerly zentus)
Another Java - SWIG wrapper. It only works on Win32. http://rodolfo_3.tripod.com/index.html
sqlite-java-shell: 100% ...
Convert SQLITE SQL dump file to POSTGRESQL
...h a sequence to that column so that INSERTs with NULL ids will be automatically assigned the next available value. PostgreSQL will also not recognize AUTOINCREMENT commands, so these need to be removed.
You'll also want to check for datetime columns in the SQLite schema and change them to timestamp ...
What's the difference between `on` and `live` or `bind`?
.../ Equivalent `on`
$(document.body).on("click", ".mySelector", fn);
Internally, jQuery maps all these methods and shorthand event handler setters to the on() method, further indicating that you should ignore these methods from now on and just use on:
bind: function( types, data, fn ) {
return...
Understanding prototypal inheritance in JavaScript
...ctor or in the prototype. Using the prototype is more efficient because usually you need a function only once per type.
The new call in javascript automatically sets the constructor in the prototype. If you are overwriting the prototype so you have to set the constructor manually.
Inheritance in j...