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get list of pandas dataframe columns based on data type
If I have a dataframe with the following columns:
12 Answers
12
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What's the best way to bundle static resources in a Go program? [closed]
... []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
Storing as base64 string
If the file is not "too large" (most images/icons qualify), there are other viable options too. You can convert the content of the file to a Base64 string and store that in your source code. On application star...
store and retrieve a class object in shared preference
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Serialise it and store it, in a database (SQLite) / in a flat file.
– Blundell
Mar 24 '11 at 11:35
5
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Android Facebook integration with invalid key hash
...A");
md.update(signature.toByteArray());
Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
}
catch (NameNotFoundException e) {
}
catch (NoSuchAlgorithmException e) {
}
Modify "com.example.packagename" with your package name in the above coding without fai...
Drawing an SVG file on a HTML5 canvas
...tation to comment on the @Matyas answer, but if the svg's image is also in base64, it will be drawed to the output.
Demo:
var svg = document.querySelector('svg');
var img = document.querySelector('img');
var canvas = document.querySelector('canvas');
// get svg data
var xml = new XMLSeri...
Targeting both 32bit and 64bit with Visual Studio in same solution/project
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Yes, you can target both x86 and x64 with the same code base in the same project. In general, things will Just Work if you create the right solution configurations in VS.NET (although P/Invoke to entirely unmanaged DLLs will most likely require some conditional code): the items th...
如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...了很多Asp.Net开发的知识点和细节，也养成了很多良好的编码习惯。在后面在做其他项目，可以模仿和应用它很多设计实现。
有些程序员写了很多年程序，代码质量不高，一个原因就是因为看的太少，很少去参考学习那些优秀的...
application/x-www-form-urlencoded or multipart/form-data?
...encoding types in an API context (no browser involved)? This might e.g. be based on:
6 Answers
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App Inventor 2 图片缩放并返回Base64文本 - App应用开发 - 清泛IT社区，为创新赋能！
图片缩放并Base64化 参考代码如下：（注：图片可拖动至编程区，自动还原代码块）
参考用法如下：
其中，用到的SimpleBase64拓展，点此查看。其中，用到的TaifunImage拓展，点此查看。
来源中文文档：https://www.fun123.cn/reference/ ......
How to hash a password
... salt+hash into a string for storage
string savedPasswordHash = Convert.ToBase64String(hashBytes);
DBContext.AddUser(new User { ..., Password = savedPasswordHash });
STEP 5 Verify the user-entered password against a stored password
/* Fetch the stored value */
string savedPasswordHash = DBContex...