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Reading value from console, interactively
...n.addListener("data", function(d) {
// note: d is an object, and when converted to a string it will
// end with a linefeed. so we (rather crudely) account for that
// with toString() and then trim()
console.log("you entered: [" +
d.toString().trim() + "]");
});
...
Pass An Instantiated System.Type as a Type Parameter for a Generic Class
... if you can get away with making your generic type implement a non-generic interface, you can cast to that interface. Alternatively, you could write your own generic method which does all of the work you want to do with the generic, and call that with reflection.
– Jon Skeet
...
What is the best way to determine the number of days in a month with JavaScript?
... @NoelWalters—you're correct that some browsers inocorrectly convert two digit years to dates in the 20th centry (so dates before 100 AD, not 1000 AD), however your fix doesn't rectify that in those browsers. The only way to reliably set two digit years is to use setFullYear: var d=new...
Modifying a subset of rows in a pandas dataframe
...
To replace multiples columns convert to numpy array using .values:
df.loc[df.A==0, ['B', 'C']] = df.loc[df.A==0, ['B', 'C']].values / 2
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Why do you not use C for your web apps?
...tric platforms) has. So you may have to either buy components, or perform interop, or roll your own functionality which comes "for free" with a more, shall we say "web-centric" language like PHP or C# or Ruby or whatever. That means you pay more.
Add all of that to the fact that single-threaded c...
JavaScript - get the first day of the week from current date
...ay = new Date();
var day = today.getDay() || 7; // Get current day number, converting Sun. to 7
if( day !== 1 ) // Only manipulate the date if it isn't Mon.
today.setHours(-24 * (day - 1)); // Set the hours to day number minus 1
// mult...
What's a “static method” in C#?
...refore cannot be instantiated.
For example:
class SomeClass {
public int InstanceMethod() { return 1; }
public static int StaticMethod() { return 42; }
}
In order to call InstanceMethod, you need an instance of the class:
SomeClass instance = new SomeClass();
instance.InstanceMethod(); ...
Print array to a file
... } elseif($mixed === ""){
$mixed = "''";
}
//CONVERT STRINGS 'true', 'false' and 'null' TO true, false and null
//uncomment if needed
//elseif(!is_numeric($mixed) && !is_array($mixed) && !empty($mixed)){
// if($mixed != 'false' &...
Traverse a list in reverse order in Python
...merate() returns a generator and generators can't be reversed, you need to convert it to a list first.
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appearanceWhenContainedIn in Swift
I'm trying to convert my app to the Swift language.
11 Answers
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