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Converting RGB to grayscale/intensity
...evious similar question. It is very helpful:
http://cadik.posvete.cz/color_to_gray_evaluation/
It shows 'tons' of different methods to generate grayscale images with different outcomes!
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im...
Create a branch in Git from another branch
... newbies, this is what a --no-ff merge looks like
– A__
Oct 6 '18 at 23:01
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How can I create directories recursively? [duplicate]
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note, exist_ok=True is convenient to save having to check if it exists first every time.
– ideasman42
Jan 10 '15 at 3:57
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Generate list of all possible permutations of a string
...f a string between x and y characters in length"
– ck_
Mar 28 '13 at 23:06
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Most lightweight way to create a random string and a random hexadecimal number
...xrange(30))", "import random")
>>> t2 = timeit.Timer("binascii.b2a_hex(os.urandom(15))", "import os, binascii")
>>> t3 = timeit.Timer("'%030x' % random.randrange(16**30)", "import random")
>>> for t in t1, t2, t3:
... t.timeit()
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28.165037870407104
9.02927398681640...
Cannot overwrite model once compiled Mongoose
...d then have a global object call it when it needs it.
For example:
user_model.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema = new Schema({
name:String,
email:String,
password:String,
phone:Number,
_enabled:Boolean
});
module.exports = mongoo...
Modulo operation with negative numbers
...nt" in this case, rather than "unsigned" even when both operands are uint32_t or bigger.
– Frederick Nord
Sep 24 '16 at 14:56
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Convert decimal to hexadecimal in UNIX shell script
...ilter a whole file of integers, one per line:
( echo "obase=16" ; cat file_of_integers ) | bc
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PHP Array to CSV
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array_to_CSV($data); function array_to_CSV($data) { $outstream = fopen("php://output", 'r+'); fputcsv($outstream, $data, ',', '"'); rewind($outstream); $csv = fgets($outstream); fclose(...
VBA - how to conditionally skip a for loop iteration
... that you are able not use the GoTo.
If 6 - ((Int_height(Int_Column - 1) - 1) + Int_direction(e, 1)) = 7 Or (Int_Column - 1) + Int_direction(e, 0) = -1 Or (Int_Column - 1) + Int_direction(e, 0) = 7 Then
Else
If Grid((Int_Column - 1) + Int...