planning

node_modules/hast-util-has-property/index.js

@@ -0,0 +1,20 @@
+'use strict'
+
+var own = {}.hasOwnProperty
+
+module.exports = hasProperty
+
+// Check if `node` has a set `name` property.
+function hasProperty(node, name) {
+  var props
+  var value
+
+  if (!node || !name || typeof node !== 'object' || node.type !== 'element') {
+    return false
+  }
+
+  props = node.properties
+  value = props && own.call(props, name) && props[name]
+
+  return value !== null && value !== undefined && value !== false
+}