Make the javascript more idiomatic

The coffee to javascript conversion was done with little manual review,
and we were left with many while loops that should have been for loops

Author: lovasoa

src/api.js

@@ -358,10 +358,8 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
         var size = sqlite3_column_bytes(this.stmt, pos);
         var ptr = sqlite3_column_blob(this.stmt, pos);
         var result = new Uint8Array(size);
-        var i = 0;
-        while (i < size) {
+        for (var i = 0; i < size; i += 1) {
             result[i] = HEAP8[ptr + i];
-            i += 1;
         }
         return result;
     };
@@ -382,9 +380,8 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
             this["step"]();
         }
         var results1 = [];
-        var field = 0;
         var ref = sqlite3_data_count(this.stmt);
-        while (field < ref) {
+        for (var field = 0; field < ref; field += 1) {
             switch (sqlite3_column_type(this.stmt, field)) {
                 case SQLITE_INTEGER:
                 case SQLITE_FLOAT:
@@ -399,7 +396,6 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
                 default:
                     results1.push(null);
             }
-            field += 1;
         }
         return results1;
     };
@@ -416,11 +412,9 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
      */
     Statement.prototype["getColumnNames"] = function getColumnNames() {
         var results1 = [];
-        var i = 0;
         var ref = sqlite3_column_count(this.stmt);
-        while (i < ref) {
+        for (var i = 0; i < ref; i += 1) {
             results1.push(sqlite3_column_name(this.stmt, i));
-            i += 1;
         }
         return results1;
     };
@@ -445,12 +439,9 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
         var values = this["get"](params);
         var names = this["getColumnNames"]();
         var rowObject = {};
-        var i = 0;
-        var len = names.length;
-        while (i < len) {
+        for (var i = 0; i < names.length; i += 1) {
             var name = names[i];
             rowObject[name] = values[i];
-            i += 1;
         }
         return rowObject;
     };
@@ -504,12 +495,11 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
     };
 
     Statement.prototype.bindNumber = function bindNumber(num, pos) {
-        var bindfunc;
         if (pos == null) {
             pos = this.pos;
             this.pos += 1;
         }
-        bindfunc = (
+        var bindfunc = (
             num === (num | 0)
                 ? sqlite3_bind_int
                 : sqlite3_bind_double
@@ -577,10 +567,8 @@ Module["onRuntimeInitialized"] = function onRuntimeInitialized() {
     @nodoc
      */
     Statement.prototype.bindFromArray = function bindFromArray(values) {
-        var num = 0;
-        while (num < values.length) {
+        for (var num = 0; num < values.length; num += 1) {
             this.bindValue(values[num], num + 1);
-            num += 1;
         }
         return true;
     };