initial commit. phase 1 complete

2026-05-05 20:45:19 +02:00
parent d9c68313a0
commit 89e058ffac
20631 changed files with 3224610 additions and 43 deletions
@@ -0,0 +1,18 @@
+'use strict';
+
+var $TypeError = require('es-errors/type');
+var isObject = require('es-object-atoms/isObject');
+
+var isPropertyKey = require('../helpers/isPropertyKey');
+
+// https://262.ecma-international.org/6.0/#sec-hasproperty
+
+module.exports = function HasProperty(O, P) {
+	if (!isObject(O)) {
+		throw new $TypeError('Assertion failed: `O` must be an Object');
+	}
+	if (!isPropertyKey(P)) {
+		throw new $TypeError('Assertion failed: `P` must be a Property Key');
+	}
+	return P in O;
+};