jaquinocode
jaquinocode
/ markdown-details-collapsible.md
Created
January 31, 2022 22:53
— forked from pierrejoubert73/markdown-details-collapsible.md
How to add a collapsible section in markdown.
jaquinocode
/ previous_current_iterator.py
Created
September 1, 2020 18:02
A normal generator/iterator that additionally keeps track of the previous element in Python. Also includes an iterator to keep track of next (after) element as well.
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| from itertools import tee, chain | |
| # ABC -> (None, A) (A, B) (B, C) | |
| def prev_curr_iter(iterable): | |
| a, b = tee(iterable) | |
| return zip(chain([None], a), b) | |
| # use case | |
| for prev, curr in prev_curr_iter("ABC"): | |
| print(f"{prev=}\t{curr=}") |
jaquinocode
/ getDefault.js
Last active
December 25, 2023 19:46
setdefault but for JavaScript. setdefault is a function in Python which can be used to get around using a defaultdict. Here I recreate the behavior in JavaScript.
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| const getDefault = (o, key, defaultVal) => key in o ? o[key] : o[key] = defaultVal | |
| // Prototype version of above. Allows for usage: o.getDefault(key, def) | |
| Object.defineProperty(Object.prototype, "getDefault", { | |
| value: function(key, defaultVal) { | |
| return key in this ? this[key] : this[key] = defaultVal | |
| } | |
| }) |
jaquinocode
/ indexOfMin.js
Last active
August 25, 2020 21:07
Get the index of the minimum number in the array. For 2nd one, reduce replaces python's min w/ a key since we don't have that in js.
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| const indexOfMin = numbers => { | |
| return numbers.indexOf(Math.min(...numbers)) | |
| } |
jaquinocode
/ rangeForJavascript.js
Last active
December 25, 2023 19:47
range function for JavaScript. range is a function that's central to Python that I've implemented in JS. Here, it's a generator just like how it is in Python. Works with negative number arguments.
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| function* range(start, stop, step=1) { | |
| if(typeof stop === 'undefined') [start, stop] = [0, start] | |
| for(let i = start; step > 0 ? i < stop : i > stop; i += step) | |
| yield i | |
| } | |
| /* | |
| [...range(0, 10, 2)] | |
| [0, 2, 4, 6, 8] |
jaquinocode
/ int_float_or_string_checker.py
Last active
August 16, 2020 16:14
Checks if a string is an int, float, or string in a way that's dependable & readable.
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| def int_float_or_string(string): | |
| try: | |
| int(string) # strict and nice | |
| return int | |
| except ValueError: | |
| # float() is too permissive, this is better | |
| return float if is_strictly_float(string) else str | |
| def is_strictly_float(string): | |
| if string.startswith("-"): |