1 files changed, 37 insertions, 0 deletions
diff --git a/library/moment/src/lib/create/valid.js b/library/moment/src/lib/create/valid.js
new file mode 100644
index 000000000..ad56bfe06
--- /dev/null
+++ b/library/moment/src/lib/create/valid.js
@@ -0,0 +1,37 @@
+import extend from '../utils/extend';
+import { createUTC } from './utc';
+import getParsingFlags from '../create/parsing-flags';
+
+export function isValid(m) {
+    if (m._isValid == null) {
+        var flags = getParsingFlags(m);
+        m._isValid = !isNaN(m._d.getTime()) &&
+            flags.overflow < 0 &&
+            !flags.empty &&
+            !flags.invalidMonth &&
+            !flags.invalidWeekday &&
+            !flags.nullInput &&
+            !flags.invalidFormat &&
+            !flags.userInvalidated;
+
+        if (m._strict) {
+            m._isValid = m._isValid &&
+                flags.charsLeftOver === 0 &&
+                flags.unusedTokens.length === 0 &&
+                flags.bigHour === undefined;
+        }
+    }
+    return m._isValid;
+}
+
+export function createInvalid (flags) {
+    var m = createUTC(NaN);
+    if (flags != null) {
+        extend(getParsingFlags(m), flags);
+    }
+    else {
+        getParsingFlags(m).userInvalidated = true;
+    }
+
+    return m;
+}