Remove dependency on react-children-utilities

package.json

@@ -26,9 +26,7 @@
     "react": "17.x.x || 16.x.x || 15.x.x"
   },
   "devDependencies": {
-    "@rollup/plugin-node-resolve": "^13.0.0",
     "@types/react": "^17.0.11",
-    "react-children-utilities": "^2.5.3",
     "rollup": "^2.52.2",
     "rollup-plugin-typescript2": "^0.30.0",
     "tslib": "^2.3.0",

rollup.config.js

@@ -1,4 +1,3 @@
-import resolve from "@rollup/plugin-node-resolve";
 import typescript from "rollup-plugin-typescript2";
 import pkg from "./package.json";
 
@@ -14,6 +13,6 @@ export default {
       format: "esm",
     },
   ],
-  plugins: [resolve(), typescript()],
+  plugins: [typescript()],
   external: ["react", "react/jsx-runtime"],
 };

src/index.tsx

@@ -1,5 +1,4 @@
-import React, { useEffect, useRef } from "react";
-import onlyText from "react-children-utilities/lib/onlyText.js";
+import React, { Children, useEffect, useRef } from "react";
 
 export interface TruncateLinesProps
   extends React.HTMLAttributes<HTMLSpanElement> {
@@ -54,3 +53,15 @@ function lastIndexWhere(
   }
   return start;
 }
+
+function onlyText(children: React.ReactNode): string {
+  let result = "";
+  Children.forEach(children, (child) => {
+    if (typeof child === "number" || typeof child === "string") {
+      result += child.toString();
+    } else {
+      throw new TypeError("Unexpected child type");
+    }
+  });
+  return result;
+}