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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...ame with no upper score limit and no way to verify the score on the server by replaying moves etc.
18 Answers
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jQuery selector regular expressions
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The regex selector by @padolsey works great. Here's an example where you can iterate over text, file and checkbox input fields or textareas with it: $j('input:regex(type, text|file|checkbox),textarea').each(function(index){ // ... });
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How dangerous is it to access an array out of bounds?
... I read from outside the array (I now understand I then access memory used by some other parts of my program or even beyond that) or I am trying to set a value to an index outside of the array. The program sometimes crashes, but sometimes just runs, only giving unexpected results.
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What's the difference between identifying and non-identifying relationships?
...child table with respect to States. But a row in Person is not identified by its state attribute. I.e. state is not part of the primary key of Person.
A non-identifying relationship can be optional or mandatory, which means the foreign key column allows NULL or disallows NULL, respectively.
S...
Generate a random point within a circle (uniformly)
...point uniformly in a triangle ABC, where |AB|=|BC|? Let's make this easier by extending to a parallelogram ABCD. It's easy to generate points uniformly in ABCD. We uniformly pick a random point X on AB and Y on BC and choose Z such that XBYZ is a parallelogram. To get a uniformly chosen point in the...
How to find out the number of CPUs using python
...the local machine using Python. The result should be user/real as output by time(1) when called with an optimally scaling userspace-only program.
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How do I merge two javascript objects together in ES6+?
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You will be able to do a shallow merge/extend/assign in ES6 by using Object.assign:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
Syntax:
Object.assign(target, sources);
where ...sources represents the source object(s).
Example...
How to write LaTeX in IPython Notebook?
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You can also render an entire cell as LaTeX by typing %%latex as the first line in a text cell.
– Toke Faurby
Feb 23 '17 at 12:01
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What does it mean by select 1 from table?
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select 1 from table is used by some databases as a query to test a connection to see if it's alive, often used when retrieving or returning a connection to / from a connection pool.
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jQuery access input hidden value
..._fields.attr( 'text' );
Will give you all hidden input fields and filter by those with a specific type="".
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