Add support for false, falsey boolean props

Closes GH-14.

Author: wooorm

index.js

@@ -140,17 +140,19 @@ function toH(h, node, ctx) {
 }
 
 function addAttribute(props, prop, value, ctx) {
+  var hyperlike = ctx.hyperscript || ctx.vdom
   var schema = ctx.schema
   var info = find(schema, prop)
   var subprop
 
-  // Ignore nully, `false`, `NaN`, and falsey known booleans.
+  // Ignore nully and `NaN` values.
+  // Ignore `false` and falsey known booleans for hyperlike DSLs.
   if (
     value === null ||
     value === undefined ||
-    value === false ||
     value !== value ||
-    (info.boolean && !value)
+    (hyperlike && value === false) ||
+    (hyperlike && info.boolean && !value)
   ) {
     return
   }

package.json

@@ -78,7 +78,8 @@
     "rules": {
       "unicorn/prefer-type-error": "off",
       "guard-for-in": "off",
-      "no-self-compare": "off"
+      "no-self-compare": "off",
+      "complexity": "off"
     }
   },
   "remarkConfig": {

test.js

@@ -275,6 +275,8 @@ test('hast-to-hyperscript', function(t) {
           {
             key: 'h-3',
             style: {color: 'red'},
+            ignored: false,
+            disabled: 0,
             foo: 'bar',
             camelCase: 'on off',
             'data-123': '456',
@@ -341,6 +343,8 @@ test('hast-to-hyperscript', function(t) {
           {
             key: 'h-3',
             style: {color: 'red'},
+            ignored: false,
+            disabled: 0,
             foo: 'bar',
             camelCase: 'on off',
             'data-123': '456',