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What data type to use for hashed password field and what length?
...a site - the salt needs to be known to the login page/script/sevice that's testing the password. So - you "unknown" salt advocates - are you assuming that the code for the login process is unknown to the attacker? Otherwise - won't the attacker always know the salt, whether it's random, unique, stor...
Determine Whether Two Date Ranges Overlap
...StartDate2) notation easier to understand, Range1 is always on left in the tests.
– A.L
Dec 2 '13 at 14:46
9
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How to change an application icon programmatically in Android?
...te) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test);
findViewById(R.id.add).setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
shortcutAdd("changeIt!", count);
}
});
findViewById(R.id.increme...
Weighted random numbers
...;& r <= *(std::end(interval)-2));
// Save r for statistical test of distribution
avg[r - 1]++;
}
// Compute averages for distribution
for (double* i = std::begin(avg); i < std::end(avg); ++i)
*i /= N;
// Display distribution
for (unsigned i = 1; ...
What are the aspect ratios for all Android phone and tablet devices?
...may find yourself in that unusual ratio, for which many apps will not have tested. Amazon's app store is pre-installed on the Passport and Amazon will supposedly automatically make your app available on the Passport if its manifest does not rule it out.
– Carl
...
CPU Privilege Rings: Why rings 1 and 2 aren't used?
...her than 0 and 3, making OSes that use these levels much more difficult to test.
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Step-by-step debugging with IPython
...ly sends the %paste magic to the IPython buffer. This allows me to quickly test regions in IPython. I always run my programs from this IPython shell with run and use embed() to stop.
– Amelio Vazquez-Reina
Jun 1 '13 at 22:29
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SQL query to find record with ID not in another table
...
Fast Alternative
I ran some tests (on postgres 9.5) using two tables with ~2M rows each. This query below performed at least 5* better than the other queries proposed:
-- Count
SELECT count(*) FROM (
(SELECT id FROM table1) EXCEPT (SELECT id FROM ...
What are the differences between Helper and Utility classes?
... that case a utility method isn't desirable as it's harder to mock out for testing purposes.
– Peter Lawrey
Oct 31 '16 at 16:43
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Using fonts with Rails asset pipeline
...t; /\.(?:svg|eot|woff|ttf)$/
— @jhilden, thoughtbot/bourbon
I've also tested it on rails 4.0.0. Actually the last one line is enough to safely precompile fonts from vendor folder. Took a couple of hours to figure it out. Hope it helped someone.
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