Adding modern functionality to array object (find, findIndex) in your server side suitescripts

Hi All,

If you tried to use find or findIndex in your server-side suitescript code and came up short, ie got an error like "TypeError: Cannot find function find in object " or "TypeError: Cannot find function findIndex in object " I'll show you how to fix this and add modern array functionality to NetSuite's server-side javascript engine.

Just add this function to your script or library and call it:

 //fix netsuite javascript engine          //adds modern array functionality          function FixNetSuiteJavaScript() {              // https://tc39.github.io/ecma262/#sec-array.prototype.find              if (!Array.prototype.find) {                  Object.defineProperty(Array.prototype, 'find', {                      value: function (predicate) {                          // 1. Let O be ? ToObject(this value).                          if (this == null) {                              throw new TypeError('"this" is null or not defined');                          }                            var o = Object(this);                            // 2. Let len be ? ToLength(? Get(O, "length")).                          var len = o.length >>> 0;                            // 3. If IsCallable(predicate) is false, throw a TypeError exception.                          if (typeof predicate !== 'function') {                              throw new TypeError('predicate must be a function');                          }                            // 4. If thisArg was supplied, let T be thisArg; else let T be undefined.                          var thisArg = arguments[1];                            // 5. Let k be