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Python Sets vs Lists
...w level close to the metal good for iteration and random access by element index.
Set implementation: https://en.wikipedia.org/wiki/Hash_table, it does not iterate on a list, but finds the element by computing a hash from the key, so it depends on the nature of the key elements and the hash function...
Approximate cost to access various caches and main memory?
...THESE VALUES ARE ROUGH APPROXIMATIONS. THEY DEPEND ON
CORE AND UNCORE FREQUENCIES, MEMORY SPEEDS, BIOS SETTINGS,
NUMBERS OF DIMMS, ETC,ETC..YOUR MILEAGE MAY VARY."
EDIT: I should highlight that, as well as timing/cycle information, the above intel document addresses much more (extremely) usefu...
How can I create a “Please Wait, Loading…” animation using jQuery?
...o-repeating */
.modal {
display: none;
position: fixed;
z-index: 1000;
top: 0;
left: 0;
height: 100%;
width: 100%;
background: rgba( 255, 255, 255, .8 )
url('http://i.stack.imgur.com/FhHRx.gif')
50% 50%
...
Check if list contains any of another list
...
how can u figure out the list index where the condition becomes true ? I have a list with sentences. I have an array with particular words. I want indexes of the list if the sentence have atleast one words from the array. @BrokenGlass
...
how to add script src inside a View when using Layout
...t while doing client side validations like below.
@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<script type="text/javascript" src="~/Scripts/jquery-3.1.1.min.js"></script>
<script type="text/javascript">
$(function () {
//Your code
});
</script&g...
Alternate FizzBuzz Questions [closed]
...2th term, F12, is the first term to contain three digits.
What is the index of the first term in the Fibonacci sequence to
contain 1000 digits?
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How do I show multiple recaptchas on a single page?
...captcha.getResponse(1) to validate multiple instances I would add that the indexing does have to correspond with the grecaptcha.render ordering. For this example, grecaptcha.render('RecaptchaField1'... would be verified with grecaptcha.getResponse(0) and grecaptcha.render('RecaptchaField2'... wou...
How does Trello access the user's clipboard?
...position: fixed;
left: 0px;
top: 0px;
width: 0px;
height: 0px;
z-index: 100;
display: none;
opacity: 0;
}
#clipboard {
width: 1px;
height: 1px;
padding: 0px;
}
... and the CSS makes it so you can't actually see the textarea when it pops in ... but it's "visible" enough t...
How to use permission_required decorators on django class-based views
...your view (docs)
urlpatterns = [
path('view/',login_required(ViewSpaceIndex.as_view(..)),
...
]
The decorator is applied on a per-instance basis, so you can add it or remove it in different urls.py routes as needed.
Decorate your class so every instance of your view will be wrapped by th...
Why is there huge performance hit in 2048x2048 versus 2047x2047 array multiplication?
... are offset from each other by 2048*sizeof(float) and thus map to the same index in the L1 cache. With an N-way associative cache you will have typically have 1-8 cache locations for all of these. Thus almost all of those accesses will trigger an L1 cache eviction, and fetching of data from a slow...