mitaki28

// requires TypeScript 2.1 or higher

export abstract class Lens<T, U> {
    abstract get: (obj: T) => U;
    abstract set: (value: U) => (obj: T) => T;
    then = <V>(lens: Lens<U, V>) => new ComposedLens(this, lens);
    thenKey = <L extends keyof U>(key: L): Lens<T, U[L]> => this.then(new ObjectLens<U, L>(key));
    modify = (f: (value: U) => U) => (obj: T) => this.set(f(this.get(obj)))(obj);
}
export class IdLens<T> extends Lens<T, T> {

mitaki28

/*
  Simple wrapper for SQLite3
  
  This code is Public Domain
  
  **CAUTION**
  1. No Warrantry
  2. This code is *NOT* safe against SQL Injection.
  3. This code can *NOT* handle BLOB or TEXT including '\0'.
  4. You should *NOT* use this for production.

mitaki28

/**
 * Priority Queue for JavaScript
 * 
 * simple implementation of priority queue with heap on javascript.
 * 
 */

var PriorityQueue = function(cmp){
  this.heap = [];
	this.cmp = (cmp == null) ? PriorityQueue.CMP : cmp;

mitaki28

# ~*~ coding:utf-8 ~*~
"""
数学でよく使う、掛け算記号の省略をやってみた
"""


def _(method):
    def __(self, *args, **kw):
        r = getattr(float, method)(self, *args, **kw)
        return Float2(r) if isinstance(r, float) else r

mitaki28

# ~*~ coding:utf-8 ~*~
"""
=============================================
Support Increment and Decrement on Python
=============================================

>>> import inc_dec
>>> i = int(1)
>>> ++i
>>> print i