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Object.getOwnPropertyNames vs Object.keys
...n-enumerable properties.
Regarding to examples, one of pitfall cases is an Error object: some of its properties are non-enumerable.
So while console.log(Object.keys(new Error('some msg'))) yields [],
console.log(Object.getOwnPropertyNames(new Error('some msg'))) yields ["stack", "message"]
conso...
JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti
I am getting the following error when trying to get a JSON request and process it:
14 Answers
...
Use of 'use utf8;' gives me 'Wide character in print'
...ng and gives you a warning. As ever, you can get more explanation for this error by including use diagnostics. It will say this:
(S utf8) Perl met a wide character (>255) when it wasn't expecting
one. This warning is by default on for I/O (like print). The easiest
way to quiet this warn...
How do I get an apk file from an Android device?
...t $2}')"; mv base.apk $i.apk 2&> /dev/null ;done
If you get "adb: error: failed to stat remote object" that indicates you don't have the needed permissions. I ran this on a NON-rooted Moto Z2 and was able to download ALL the APKs I did not uninstall (see below) except youtube.
adb shell p...
Windows git “warning: LF will be replaced by CRLF”, is that warning tail backward?
...these values:
SAFE_CRLF_FALSE: do nothing in case of EOL roundtrip errors
SAFE_CRLF_FAIL: die in case of EOL roundtrip errors
SAFE_CRLF_WARN: print a warning in case of EOL roundtrip errors
SAFE_CRLF_RENORMALIZE: change CRLF to LF
SAFE_CRLF_KEEP_CRLF: keep all line endings as...
JavaScript/jQuery to download file via POST with JSON data
...eate two server functions. The first validated the data. If there was an error, it would be returned. If it was not an error, I returned all of the parameters serialized/encoded as a base64 string. Then, on the client, I have a form that has only one hidden input and posts to a second server fun...
Cannot serve WCF services in IIS on Windows 8
...to serve a WCF service on IIS in a Windows 8 machine, I get the well known error
6 Answers
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How to call a function from a string stored in a variable?
...
How could I void function definition error if the the function was not defined? Does if($functionName) enough?
– SaidbakR
May 2 '13 at 9:27
14...
Namespace + functions versus static methods on a class
...tion
string s ; // Ok
vector v ; // Ok
}
string ss ; // COMPILATION ERROR
vector vv ; // COMPILATION ERROR
And you can even limit the "pollution" to one class:
#include <string>
#include <vector>
{
using std::string ;
string s ; // Ok
vector v ; // COMPILATION ERROR
}...
javascript function leading bang ! syntax
...ion(){
// do stuff
}();
doesn't fit that form (and will cause a syntax error at the first opening paren because there is no function name), so the brackets are used to delineate an anonymous function expression.
(function(){
// do stuff
})();
But anything that creates an expression (as oppo...