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Automatically create an Enum based on values in a database lookup table?
... not sure what billfredtom's reasoning is, but mine was that I could avoid doing manual string-lookups for certain keys, instead having them built into my code. I just prefer to be able to perform logic on strongly-typed values instead of weak strings. A caveat would be that, since we now have c...
Adding data attribute to DOM
... It also has to be a string - $('div').attr('data-info', ''+info.id)
– daviestar
Mar 17 '14 at 5:15
1
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Difference between Key, Primary Key, Unique Key and Index in MySQL
... A primary key is a column, or a combination of columns, that can uniquely identify a row. It is a special case of unique key. A table can have at most one primary key, but more than one unique key. When you specify a unique key on a column, no two distinct rows in a table can have the same value.
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How to convert URL parameters to a JavaScript object?
...answer: https://stackoverflow.com/a/1746566/1194694 there's no spec for deciding what to do with it and each framework can behave differently.
A common use case will be to join the two same values into an array, making the output object into:
{foo: ["first_value", "second_value"]}
This can be a...
Likelihood of collision using most significant bits of a UUID in Java
If I'm using Long uuid = UUID.randomUUID().getMostSignificantBits() how likely is it to get a collision. It cuts off the least significant bits, so there is a possibility that you run into a collision, right?
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CSS Pseudo-classes with inline styles
...nk of inline styles as the styles applied to some anonymous super-specific ID selector: those styles only apply to that one very element with the style attribute. (They take precedence over an ID selector in a stylesheet too, if that element has that ID.) Technically it doesn't work like that; this ...
Can I split an already split hunk with git?
...ng I could just delete the - characters, and Git complained that my patch didn't apply.
– Ryan Lundy
Jul 29 '11 at 20:18
3
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Navigation in django
...ad>
<body>
...
{% block nav %}
<ul id="nav">
<li>{% block nav-home %}<a href="{% url home %}">Home</a>{% endblock %}</li>
<li>{% block nav-about %}<a href="{% url about %}">About</a>{% endblo...
Use “ENTER” key on softkeyboard instead of clicking button
...e enter key or the d-pad is clicked.
addCourseText = (EditText) findViewById(R.id.clEtAddCourse);
addCourseText.setOnKeyListener(new OnKeyListener()
{
public boolean onKey(View v, int keyCode, KeyEvent event)
{
if (event.getAction() == KeyEvent.ACTION_DOWN)
{
swi...
mysql Foreign key constraint is incorrectly formed error
I have two tables, table1 is the parent table with a column ID and table2 with a column IDFromTable1 (not the actual name) when I put a FK on IDFromTable1 to ID in table1 I get the error Foreign key constraint is incorrectly formed error . I would like to delete table 2 record if tab...