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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...egers, you count starting from 0 and you end at 255. But with places in a string, you count starting from the 1st place, so doesn't it make sense to end at the 256th place, because you started at 1 instead of 0? I'm not agreeing with varchar(256) entirely just yet, because of string_length() resul...
map function for objects (instead of arrays)
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There is no need to add an extra HTTP call and an extra library just for one function. In any case, this answer is now outdated and you can simply call Object.entries({a: 1, b: 2, c: 3}) to get an array.
– user6269864
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How can I pad a value with leading zeros?
...n't use this solution!
Potentially outdated: ECMAScript 2017 includes String.prototype.padStart and Number.prototype.toLocaleString is there since ECMAScript 3.1. Example:
var n=-0.1;
n.toLocaleString('en', {minimumIntegerDigits:4,minimumFractionDigits:2,useGrouping:false})
...will outpu...
Case insensitive 'Contains(string)'
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To test if the string paragraph contains the string word (thanks @QuarterMeister)
culture.CompareInfo.IndexOf(paragraph, word, CompareOptions.IgnoreCase) >= 0
Where culture is the instance of CultureInfo describing the language that t...
In git, what is the difference between merge --squash and rebase?
...istory of the feature branch and move them into the master branch
Will add extra dummy commit.
Rebase and merge
Will append all commits history of the feature branch in the front of the master branch
Will NOT add extra dummy commit.
Squash and merge
Will group all feature branch commits into one com...
Is there any use for unique_ptr with array?
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here's a reason to not use vector: sizeof(std::vector<char>) == 24; sizeof(std::unique_ptr<char[]>) == 8
– Arvid
Sep 12 '14 at 22:34
15
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Queue.Queue vs. collections.deque
... for high-speed inter-thread communication.
In fact the heavy usage of an extra mutex and extra method ._get() etc. method calls in Queue.py is due to backwards compatibility constraints, past over-design and lack of care for providing an efficient solution for this important speed bottleneck issue...
Python: json.loads returns items prefixing with 'u'
I'll be receiving a JSON encoded string form Obj-C, and I am decoding a dummy string (for now) like the code below. My output comes out with character 'u' prefixing each item:
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Idiomatic way to convert an InputStream to a String in Scala
...a handy function that I've used in Java for converting an InputStream to a String. Here is a direct translation to Scala:
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What is the correct way to document a **kwargs parameter?
...onal content
"""
The r"""...""" is required to make this a "raw" docstring and thus keep the \* intact (for Sphinx to pick up as a literal * and not the start of "emphasis").
The chosen formatting (bulleted list with parenthesized type and m-dash-separated description) is simply to match the...