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SQLAlchemy: Creating vs. Reusing a Session
...ith an open SQLAlchemy session.
"""
engine = create_engine(db_url, convert_unicode=True)
connection = engine.connect()
db_session = scoped_session(sessionmaker(autocommit=False, autoflush=True, bind=engine))
yield db_session
db_session.close()
connection.close()
Usage:
...
How to swap two variables in JavaScript
...
@RobertGrant - The xor operator in JavaScript converts its operands to 32-bit integers (using the ToInt32 internal method—see Section 11.10 of the ECMAScript standard). It does not produce the correct results for non-integer numerical values. It also converts non-numer...
How to use the same C++ code for Android and iOS?
...e by steps
Our sample is a simple app that you send a text to CPP, and it converts that text to something else and returns it. The idea is, iOS will send "Obj-C" and Android will send "Java" from their respective languages, and the CPP code will create a text as a follow "cpp says hello to <<...
How to save an image to localStorage and display it on the next page?
...ge);
localStorage.setItem("imgData", imgData);
Here is the function that converts the image to a Base64 string:
function getBase64Image(img) {
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
...
How to add minutes to my Date
....format(afterAddingTenMins); it gives me 2011-50-07 17:50 , I have to convert it in String, any suggestion
– junaidp
Jan 28 '12 at 8:53
...
Why does PHP consider 0 to be equal to a string?
...a string or the comparison involves numerical strings, then each string is converted to a number and the comparison performed numerically. […] The type conversion does not take place when the comparison is === or !== as this involves comparing the type as well as the value.
As the first operand ...
How do I unlock a SQLite database?
... answered Oct 20 '08 at 14:24
converter42converter42
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...
Using AES encryption in C#
... }
cipher.Clear();
}
return Convert.ToBase64String(encrypted);
}
public static string Decrypt(string value, string password) {
return Decrypt<AesManaged>(value, password);
}
public static string Decrypt...
0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...
I'd say the answer depends on the rounding mode when converting the double to float. float has 24 binary bits of precision, and double has 53. In binary, 0.1 is:
0.1₁₀ = 0.0001100110011001100110011001100110011001100110011…₂
^ ^ ^ ^
...
AngularJs $http.post() does not send data
...plication/x-www-form-urlencoded;charset=utf-8';
/**
* The workhorse; converts an object to x-www-form-urlencoded serialization.
* @param {Object} obj
* @return {String}
*/
var param = function(obj) {
var query = '', name, value, fullSubName, subName, subValue, innerObj, i;
...