use == and != to enable handling null/undefined

lib/runtime/dart/math.js

 var math;
 (function(exports) {
   'use strict';
   class _JenkinsSmiHash extends core.Object {
     static combine(hash, value) {
       hash = 536870911 & dart.notNull(hash) + dart.notNull(value);
       hash = 536870911 & dart.notNull(hash) + ((524287 & dart.notNull(hash)) << 10);
       return dart.notNull(hash) ^ dart.notNull(hash) >> 6;
     }
     static finish(hash) {
@@ skipping 48 matching lines @@
         return dart.as(dart.notNull(dx) * dart.notNull(dx) + dart.notNull(dy) * dart.notNull(dy), T);
       }
     }
     return Point;
   });
   let Point = Point$(dart.dynamic);
   class Random extends core.Object {
     Random(seed) {
       if (seed === void 0)
         seed = null;
-      return seed === null ? new _JSRandom() : new _Random(seed);
+      return seed == null ? new _JSRandom() : new _Random(seed);
     }
   }
   let _RectangleBase$ = dart.generic(function(T) {
     class _RectangleBase extends core.Object {
       _RectangleBase() {
       }
       get right() {
         return dart.as(this.left['+'](this.width), T);
       }
       get bottom() {
@@ skipping 132 matching lines @@
     if (!dart.is(a, core.num))
       throw new core.ArgumentError(a);
     if (!dart.is(b, core.num))
       throw new core.ArgumentError(b);
     if (dart.notNull(a) > dart.notNull(b))
       return b;
     if (dart.notNull(a) < dart.notNull(b))
       return a;
     if (typeof b == 'number') {
       if (typeof a == 'number') {
-        if (a === 0.0) {
+        if (a == 0.0) {
           return (dart.notNull(a) + dart.notNull(b)) * dart.notNull(a) * dart.notNull(b);
         }
       }
-      if (a === 0 && dart.notNull(b.isNegative) || dart.notNull(b.isNaN))
+      if (a == 0 && dart.notNull(b.isNegative) || dart.notNull(b.isNaN))
         return b;
       return a;
     }
     return a;
   }
   // Function max: (num, num) → num
   function max(a, b) {
     if (!dart.is(a, core.num))
       throw new core.ArgumentError(a);
     if (!dart.is(b, core.num))
       throw new core.ArgumentError(b);
     if (dart.notNull(a) > dart.notNull(b))
       return a;
     if (dart.notNull(a) < dart.notNull(b))
       return b;
     if (typeof b == 'number') {
       if (typeof a == 'number') {
-        if (a === 0.0) {
+        if (a == 0.0) {
           return dart.notNull(a) + dart.notNull(b);
         }
       }
       if (b.isNaN)
         return b;
       return a;
     }
-    if (b === 0 && dart.notNull(a.isNegative))
+    if (b == 0 && dart.notNull(a.isNegative))
       return b;
     return a;
   }
   // Function atan2: (num, num) → double
   function atan2(a, b) {
     return Math.atan2(_js_helper.checkNum(a), _js_helper.checkNum(b));
   }
   // Function pow: (num, num) → num
   function pow(x, exponent) {
     _js_helper.checkNum(x);
@@ skipping 98 matching lines @@
         tmplow = dart.notNull(low) << 31;
         tmphigh = dart.notNull(high) << 31 | dart.notNull(low) >> 1;
         tmplow = low;
         low = dart.notNull(tmplow) & dart.notNull(_Random[_MASK32]);
         high = dart.notNull(high) + dart.notNull(tmphigh) + ((dart.notNull(tmplow) - dart.notNull(low)) / 4294967296).truncate() & dart.notNull(_Random[_MASK32]);
         tmplow = dart.notNull(this[_lo]) * 1037;
         this[_lo] = dart.notNull(tmplow) & dart.notNull(_Random[_MASK32]);
         this[_hi] = dart.notNull(this[_hi]) * 1037 + ((dart.notNull(tmplow) - dart.notNull(this[_lo])) / 4294967296).truncate() & dart.notNull(_Random[_MASK32]);
         this[_lo] = low;
         this[_hi] = high;
-      } while (seed !== empty_seed);
-      if (this[_hi] === 0 && this[_lo] === 0) {
+      } while (seed != empty_seed);
+      if (this[_hi] == 0 && this[_lo] == 0) {
         this[_lo] = 23063;
       }
       this[_nextState]();
       this[_nextState]();
       this[_nextState]();
       this[_nextState]();
     }
     [_nextState]() {
       let tmpHi = 4294901760 * dart.notNull(this[_lo]);
       let tmpHiLo = dart.notNull(tmpHi) & dart.notNull(_Random[_MASK32]);
       let tmpHiHi = dart.notNull(tmpHi) - dart.notNull(tmpHiLo);
       let tmpLo = 55905 * dart.notNull(this[_lo]);
       let tmpLoLo = dart.notNull(tmpLo) & dart.notNull(_Random[_MASK32]);
       let tmpLoHi = dart.notNull(tmpLo) - dart.notNull(tmpLoLo);
       let newLo = dart.notNull(tmpLoLo) + dart.notNull(tmpHiLo) + dart.notNull(this[_hi]);
       this[_lo] = dart.notNull(newLo) & dart.notNull(_Random[_MASK32]);
       let newLoHi = dart.notNull(newLo) - dart.notNull(this[_lo]);
       this[_hi] = ((dart.notNull(tmpLoHi) + dart.notNull(tmpHiHi) + dart.notNull(newLoHi)) / dart.notNull(_POW2_32)).truncate() & dart.notNull(_Random[_MASK32]);
       dart.assert(dart.notNull(this[_lo]) < dart.notNull(_POW2_32));
       dart.assert(dart.notNull(this[_hi]) < dart.notNull(_POW2_32));
     }
     nextInt(max) {
       if (dart.notNull(max) <= 0 || dart.notNull(max) > dart.notNull(_POW2_32)) {
         throw new core.RangeError(`max must be in range 0 < max ≤ 2^32, was ${max}`);
       }
-      if ((dart.notNull(max) & dart.notNull(max) - 1) === 0) {
+      if ((dart.notNull(max) & dart.notNull(max) - 1) == 0) {
         this[_nextState]();
         return dart.notNull(this[_lo]) & dart.notNull(max) - 1;
       }
       let rnd32 = null;
       let result = null;
       do {
         this[_nextState]();
         rnd32 = this[_lo];
         result = rnd32.remainder(max);
       } while (dart.notNull(rnd32) - dart.notNull(result) + dart.notNull(max) >= dart.notNull(_POW2_32));
       return result;
     }
     nextDouble() {
       this[_nextState]();
       let bits26 = dart.notNull(this[_lo]) & (1 << 26) - 1;
       this[_nextState]();
       let bits27 = dart.notNull(this[_lo]) & (1 << 27) - 1;
       return (dart.notNull(bits26) * dart.notNull(_Random[_POW2_27_D]) + dart.notNull(bits27)) / dart.notNull(_Random[_POW2_53_D]);
     }
     nextBool() {
       this[_nextState]();
-      return (dart.notNull(this[_lo]) & 1) === 0;
+      return (dart.notNull(this[_lo]) & 1) == 0;
     }
   }
   _Random._POW2_53_D = 1.0 * 9007199254740992;
   _Random._POW2_27_D = 1.0 * (1 << 27);
   _Random._MASK32 = 4294967295;
   // Exports:
   exports.Point = Point;
   exports.Point$ = Point$;
   exports.Random = Random;
   exports.Rectangle = Rectangle;
@@ skipping 15 matching lines @@
   exports.sin = sin;
   exports.cos = cos;
   exports.tan = tan;
   exports.acos = acos;
   exports.asin = asin;
   exports.atan = atan;
   exports.sqrt = sqrt;
   exports.exp = exp;
   exports.log = log;
 })(math || (math = {}));