Rememor

Simple memoization module, to speed up recursion, and calls to expensive functions.

Installation

 $ npm install rememor

Usage

    const remem = require('rememor');
    //remem.doc(true) prints out a little info on the module.
    let add = (a,b) => a + b;
    const memAdd = remem.shallowRemem(add);
    memAdd(1,2);
    => 3
    memAdd(1,2);
    => 3 //But uses cache instead of calculating.
    let fib = (n) => {
        if(n !== 0 && n !== 1) {
            return fib(n-2) + fib(n-1);
        } else {
            return n;
        }
    }
    let memFib = remem.deepRemem(fib, 'fib');
    //First argument is recursive function, second argument is the name
    //of the recursive function to be replaced with the original function definition.
    memFib(300);
    => uses caches within function and returns in linear time.
    let kindaLog = remem.kindaRemem(Math.log, null, .9);
    //This is an approximation using memoization
    kindaLog(.1000000007);
    => //Calculates using original function
    kindaLog(.1000000006);
    => //Returns the cached value for the previous call because similar args.

Warning:

Be careful when using deepRemem, it modifies the function.