Formateo de numeros en JS

app/resources/views/layout/body/scripts/number_format.blade.php

@@ -0,0 +1,45 @@
+@push('page_scripts')
+    <script>
+        Intl.NumberFormat.prototype.parse = function(valueString) {
+            const format = new Intl.NumberFormat(this.resolvedOptions().locale);
+            const parts = format.formatToParts(-12345.6);
+            const numerals = Array.from({ length: 10 }).map((_, i) => format.format(i));
+            const index = new Map(numerals.map((d, i) => [d, i]));
+            _minusSign = new RegExp(`[${parts.find(d => d.type === 'minusSign').value}]`);
+            _group = new RegExp(`[${parts.find(d => d.type === 'group').value}]`, 'g');
+            _decimal = new RegExp(`[${parts.find(d => d.type === 'decimal').value}]`);
+            _numeral = new RegExp(`[${numerals.join('')}]`, 'g');
+            _index = d => index.get(d);
+
+            const DIRECTION_MARK = /\u061c|\u200e/g
+            return +(
+                valueString.trim()
+                    .replace(DIRECTION_MARK, '')
+                    .replace(_group, '')
+                    .replace(_decimal, '.')
+                    .replace(_numeral, _index)
+                    .replace(_minusSign, '-')
+            )
+        }
+        Intl.NumberFormat.prototype.isLocale = function(stringValue) {
+            const format = new Intl.NumberFormat(this.resolvedOptions().locale);
+            const parts = format.formatToParts(-12345.6);
+            const group = parts.find(d => d.type === 'group').value;
+            const decimal = parts.find(d => d.type === 'decimal').value;
+
+            if (stringValue.includes(group)) {
+                if (stringValue.includes(decimal)) {
+                    return stringValue.indexOf(group) < stringValue.indexOf(decimal)
+                }
+                if (stringValue.split(group).map(d => d.length).filter(d => d > 3).length > 0) {
+                    return false
+                }
+                return stringValue.split(group).length > 2;
+            }
+            if (stringValue.includes(decimal)) {
+                return stringValue.split(decimal).length <= 2;
+            }
+            return false
+        }
+    </script>
+@endpush