Fixed issue where createFrom would misidentify strings as arrays (#3435)

* Update check for Array-like variables

* Updated binding tests to reflect changes

* Update documentation to reflect changes

* Fixed PR number in changelog

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Co-authored-by: Lea Anthony <lea.anthony@gmail.com>

website/docs/howdoesitwork.mdx

@@ -418,7 +418,7 @@ export namespace main {
       if (!a) {
         return a;
       }
-      if (a.slice) {
+      if (a.slice && a.map) {
         return (a as any[]).map((elem) => this.convertValues(elem, classs));
       } else if ("object" === typeof a) {
         if (asMap) {