JSONAttemptPrase fallback

src/json.ts

@@ -0,0 +1,40 @@
+/**
+ * Parse JSON but return the original string if it fails
+ *
+ * @param {any} json JSON string to parse
+ * @param fallback Fallback value if unable to parse, defaults to original string
+ * @return {string | T} Object if successful, original string otherwise
+ */
+export function JSONAttemptParse<T1, T2>(json: T2, fallback?: T1): T1 | T2 {
+	try { return JSON.parse(<any>json); }
+	catch { return fallback ?? json; }
+}
+
+/**
+ * Stringifies objects & skips primitives
+ *
+ * @param {any} obj Object to convert to serializable value
+ * @return {string | T} Serialized value
+ */
+export function JSONSerialize<T1>(obj: T1): T1 | string {
+	if(typeof obj == 'object' && obj != null) return JSONSanitize(obj);
+	return obj;
+}
+
+/**
+ * Convert an object to a JSON string avoiding any circular references.
+ *
+ * @param obj Object to convert to JSON
+ * @param {number} space Format the JSON with spaces
+ * @return {string} JSON string
+ */
+export function JSONSanitize(obj: any, space?: number): string {
+	const cache: any[] = [];
+	return JSON.stringify(obj, (key, value) => {
+		if(typeof value === 'object' && value !== null) {
+			if(cache.includes(value)) return '[Circular]';
+			cache.push(value);
+		}
+		return value;
+	}, space);
+}