Value equality with coercion. Edge cases.

equality_coercion.js

var testStr = function () {
  
  var a = "5";
  var b = "44";
  
  console.log("num str", a > b); // true, lex comparison
};

testStr();

var testNaN = function () {
  
  var a = 6;
  var b = "five"; // coerced to NaN, neither lesser non greater
  
  console.log("6 > five", a > b);
  console.log("6 < five", a < b);
  console.log("6 == five", a == b);
};

testNaN();

var testArray = function () {
  
  var a = [1];
  var b = [1];
  
  console.log('arrays', a == b); // false, obj references
};

testArray();

var testEmpty = function () {
  
  var a = 0;
  var b = []; //""
  
  console.log('empty things', a == b); // true, both coerced to num when either is num
};

testEmpty();

var testBool = function () {
  
  var a = "";
  var b = false;
  
  console.log('bools', a == b); // true, both coerced to bool when both bool
};

testBool();