Loop Recur

Note: At this moment this is a proof of concept library and is completely unstable.

loop-recur is an javascript implementation of Clojures loop and recur.

Installation

npm install loop-recur

Use

Basic factorial

var loop = require('loop-recur');

loop(function(n,fact) {
  console.log(n,fact);
  if (n<2) {
    this.returning(fact);
  } else { 
    this.recur(n-1, fact * n);
  } 
})(6,1, function(result){
  console.log("FACTORIAL:", result); });

Use recursion without the worry of RangeError: Maximum call stack size exceeded

var loop = require('./loop_recur');

loop(function(x){
  console.log(x);
  if (x < 100000) {
    this.recur(x+1);
  } else {
    this.returning(x);
  }
})(0, function(val) { console.log(val); });

Format

loop( function( [args] ) { 
  if ( [recursive condition] ) {
    this.recur( [adjusted args] );
  } else {
    this.returning( [return value] );
  }
})( [arg1] , ... , [argn] , [callback]);