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When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...oduce several per second on the same node. Example: [uuid.uuid1() for i in range(2)]. Unless of course something strange is going on that I'm missing.
– Michael Mior
Nov 16 '13 at 4:14
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How to change font size on part of the page in LaTeX?
... fontsize you can use following. Worked for me since in my case predefined ranges (Large, tiny) are not match with the font size required to me.
\fontsize{10}{12}\selectfont This is the text you need to be in 10px
More info: https://tug.org/TUGboat/tb33-3/tb105thurnherr.pdf
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Why is it important to override GetHashCode when Equals method is overridden?
... the fields in the class, but since you know your object's domain or value ranges you could still provide a better one.
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How to switch position of two items in a Python list?
...
for i in range(len(arr)):
if l[-1] > l[i]:
l[-1], l[i] = l[i], l[-1]
break
as a result of this if last element is greater than element at position i then they both get swapped .
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Why does MYSQL higher LIMIT offset slow the query down?
...id LIMIT X,Y.
I have 35million of rows so it took like 2 minutes to find a range of rows.
Here is the trick :
select id, name, address, phone
FROM customers
WHERE id > 990
ORDER BY id LIMIT 1000;
Just put the WHERE with the last id you got increase a lot the performance. For me it was from 2m...
What is the difference between svg's x and dx attribute?
...idth: 1; stroke: lightgray; }
</style>
<script>
dataset = d3.range(50,500,50);
svg = d3.select("body").append("svg");
svg.attr('width',500).attr('height', 500);
svg.append("line").attr('x1', 0).attr('x2', 500).attr('y1', 100).attr('y2', 100);
svg.append("line").attr('x1', 0).attr('x2...
Is there a regular expression to detect a valid regular expression?
...any invalid POSIX EREs. Notably, they are a bit pickier in character class ranges, e.g. this is valid in PCRE but not in ERE: [a-b-c].
– Pedro Gimeno
Dec 25 '19 at 19:39
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How do I append one string to another in Python?
...end result is that the operation is amortized O(n).
e.g.
s = ""
for i in range(n):
s+=str(i)
used to be O(n^2), but now it is O(n).
From the source (bytesobject.c):
void
PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
PyBytes_Concat(pv, w);
Py_XDECREF(w);
}
/...
What are the differences between PMD and FindBugs?
...Boolean values, impossible cast, 32bit int shifted by an amount not in the range of 0-31, a collection which contains itself, equals method always returns true, an infinite loop, etc.
Usually each of them finds a different set of problems. Use both. These tools taught me a lot about how to write go...
How to set a Django model field's default value to a function call / callable (e.g., a date relative
...(string.ascii_uppercase + string.digits + string.ascii_lowercase) for _ in range(random.randint(3, 5)))
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