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Serializing object that contains cyclic object value
... if (typeof v =='object') {
if ( !seen.indexOf(v) ) { return '__cycle__'; }
seen.push(v);
} return v;
});
return jso;
};
var obj={
g:{
d:[2,5],
j:2
},
e:10
};
obj.someloopshere = [
obj.g,
obj,
{ a: [ obj.e, obj ] }
];
c...
Conveniently Declaring Compile-Time Strings in C++
...
I haven't seen anything to match the elegance of Scott Schurr's str_const presented at C++ Now 2012. It does require constexpr though.
Here's how you can use it, and what it can do:
int
main()
{
constexpr str_const my_string = "Hello, world!";
static_assert(my_string.size() == 13,...
How to color System.out.println output? [duplicate]
...le.log(String.fromCharCode(27) + "[36mCYAN");
console.log("\x1b[30;47mBLACK_ON_WHITE");
Note that \x1b also works in node
In Shell Prompt OR Scripts
If you are working with bash or zsh, it is quite easy to color the output (in most terminals). In Linux, Os X, and in some Window's terminals, y...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...erently.
– fortran
Jan 13 '12 at 16:06
6
i'd say it's not really more readable than kw1 = kw1, kw...
How do I diff the same file between two different commits on the same branch?
...fferent files in two different revisions, like this:
git diff <revision_1>:<file_1> <revision_2>:<file_2>
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App Inventor 2 传感器应用教程 - 位置/方向/加速度传感器 · App Inventor 2 中文网
...位置传感器1.LocationChanged(纬度, 经度, 海拔, 速度) {
标签_经度.Text = join("经度：", 经度)
标签_纬度.Text = join("纬度：", 纬度)
标签_海拔.Text = join("海拔：", formatDecimal(海拔, 1), "米")
标签_速度.Text = join("速度：", formatDecimal(速度...
How do I find out what keystore my JVM is using?
...
Your keystore will be in your JAVA_HOME---> JRE -->lib---> security--> cacerts. You need to check where your JAVA_HOME is configured, possibly one of these places,
Computer--->Advanced --> Environment variables---> JAVA_HOME
Your serv...
How do I use prepared statements in SQlite in Android?
... Below are some examples:
Create a table
String sql = "CREATE TABLE table_name (column_1 INTEGER PRIMARY KEY, column_2 TEXT)";
SQLiteStatement stmt = db.compileStatement(sql);
stmt.execute();
The execute() method does not return a value so it is appropriate to use with CREATE and DROP but not in...
How to avoid .pyc files?
...terpreter. This setting is available
to Python programs as the
sys.dont_write_bytecode variable, and
Python code can change the value to
modify the interpreter’s behaviour.
Update 2010-11-27: Python 3.2 addresses the issue of cluttering source folders with .pyc files by introducing a spe...
Python base64 data decode
...NOQCAAAAAEQ05DYAAAAARDTndgAAAABENOeqAAAAAEQ0594AAAAARDToEgAAAABENOhGQoWMvEQ06HpDQjn9RDTorkOZ9sZENOjiQ7LKFEQ06RZDkzI2RDTpSkL3QTJENOl+AAAAAEQ06bIAAAAARDTp5gAAAABENOoaAAAAAEQ129gAAAAARDXcDAAAAABENdxBAAAAAEQ13HUAAAAARDXcqkMUJ6FENdzeQ1KteUQ13RNDdSurRDXdSENhih1ENd18QzJGj0Q13bEAAAAARDXd5QAAAABENd4aAAAAAEQ1...