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How to generate a random alpha-numeric string?
I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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Convert a character digit to the corresponding integer in C
...o check isdigit(c) is true first. Note that you cannot completely portably do the same for letters, for example:
char c = 'b';
int x = c - 'a'; // x is now not necessarily 1
The standard guarantees that the char values for the digits '0' to '9' are contiguous, but makes no guarantees for other ch...
AngularJS does not send hidden field value
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You cannot use double binding with hidden field.
The solution is to use brackets :
<input type="hidden" name="someData" value="{{data}}" /> {{data}}
EDIT : See this thread on github : https://github.com/angular/angular.js/pull/2574...
Why does Google prepend while(1); to their JSON responses?
Why does Google prepend while(1); to their (private) JSON responses?
7 Answers
7
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Visual Studio Disabling Missing XML Comment Warning
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As suggested above, in general I don't think that these warnings should be ignored (suppressed). To summarise, the ways around the warning would be to:
Suppress the warning by changing the project Properties > Build > Errors and warnings > Suppre...
Displaying files (e.g. images) stored in Google Drive on a website
...er viewing it is logged in to Google (Drive?). In an anonymous browsing window, I received a login page instead of the (publicly shared) image I requested.
– scy
Feb 21 '13 at 13:34
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How to get string objects instead of Unicode from JSON?
...on_load_byteified(open('somefile.json'))
{'more json': 'from a file'}
How does this work and why would I use it?
Mark Amery's function is shorter and clearer than these ones, so what's the point of them? Why would you want to use them?
Purely for performance. Mark's answer decodes the JSON text f...
How to use OpenSSL to encrypt/decrypt files?
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Security Warning: AES-256-CBC does not provide authenticated encryption and is vulnerable to padding oracle attacks. You should use something like age instead.
Encrypt:
openssl aes-256-cbc -a -salt -in secrets.txt -out secrets.txt.enc
Decrypt:
opens...
How to turn on/off ReactJS 'development mode'?
Started using ReactJS's prop validation feature , which as the docs say only works in 'development mode' for performance reasons.
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...two 2012 keys have worked well for me with their corresponding versions to download for Update 4. Please be aware that some of these reg locations may be OS-dependent. I collected this info from a Windows 10 x64 box. I'm just going to go ahead and dump all of these redist versions and the reg keys I...