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How to hash some string with sha256 in Java?
...ry data, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], String) constructor.
e.g.
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] hash = digest.digest(text.getBytes(StandardCharsets.UTF_8));
...
MLKitCodeScanner 拓展：离线条码 / 二维码识别 · App Inventor 2 中文网
...图片文件用）。均在运行时自动申请。
打包架构：arm64-v8a + armeabi-v7a + x86 + x86_64（含模拟器）。
.aix 拓展下载：
cn.fun123.MLKit.CodeScanner.aix
快速上手
一、扫图片里的二维码
设计器里放...
What's the difference between eval, exec, and compile?
... = '42 * a'
>>> result = eval(my_calculation)
>>> result
84
exec and eval both accept the program/expression to be run either as a str, unicode or bytes object containing source code, or as a code object which contains Python bytecode.
If a str/unicode/bytes containing source c...
How to improve performance of ngRepeat over a huge dataset (angular.js)?
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I agree with @AndreM96 that the best approach is to display only a limited amount of rows, faster and better UX, this could be done with a pagination or with an infinite scroll.
Infinite scroll with Angular is really simple with limitTo filter....
Can iterators be reset in Python?
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84
I see many answers suggesting itertools.tee, but that's ignoring one crucial warning in the doc...
getActivity() returns null in Fragment function
...ited Jan 8 '19 at 3:53
thanhbinh84
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answered Dec 28 '14 at 16:05
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How can we run a test method with multiple parameters in MSTest?
...itam Karmakar
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Should JAVA_HOME point to JDK or JRE?
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David W.David W.
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Simple insecure two-way data “obfuscation”?
...honest people honest, but something a little stronger than ROT13 or Base64 .
17 Answers
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How to make a class property? [duplicate]
...
96
Here's how I would do this:
class ClassPropertyDescriptor(object):
def __init__(self, fge...