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What is your favorite C programming trick? [closed]
... community wiki
2 revs, 2 users 92%Andrew Barrett
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How to correct TypeError: Unicode-objects must be encoded before hashing?
...dbits(256)).encode('utf-8')).hexdigest()
'cd183a211ed2434eac4f31b317c573c50e6c24e3a28b82ddcb0bf8bedf387a9f'
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Favorite (Clever) Defensive Programming Best Practices [closed]
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2 revs, 2 users 92%Kyralessa
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How can I build XML in C#?
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4 revs, 4 users 92%user65199
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How to make a great R reproducible example
...thing on larger objects, you can try
my.df2 <- data.frame(a = sample(10e6), b = sample(letters, 10e6, replace = TRUE))
If you're working with spatial data via the raster package, you can generate some random data. A lot of examples can be found in the package vignette, but here's a small nugge...
Checking if a key exists in a JavaScript object?
...t = "Impression" in array;
The result was
12,931,832 ±0.21% ops/sec 92% slower
Using hasOwnProperty
var result = array.hasOwnProperty("Impression")
The result was
16,021,758 ±0.45% ops/sec 91% slower
Accessing elements directly (brackets style)
var result = array["Impression"] === un...
What is the most frequent concurrency issue you've encountered in Java? [closed]
... community wiki
2 revs, 2 users 92%Jared
63
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Copy a file in a sane, safe and efficient way
... community wiki
5 revs, 2 users 92%Donald Duck
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Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
繁体中文原文：https://blog.cavedu.com/2017/02/ ... %e6%8e%a7%e5%88%b6/
本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。
App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕：Btn_Connect /&n...
How to group dataframe rows into list in pandas groupby?
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