change to ts

src/utils/index.ts

@@ -0,0 +1,26 @@
+function replaceStrFormIndexArr(str, replaceStr, indexArr) {
+    let arr = [];
+    let result = "";
+    let index = 0;
+
+    if (!indexArr || indexArr.length < 1) {
+        return str;
+    }
+    for (let i = 0; i < indexArr.length; i++) {
+        let indexItem = indexArr[i];
+        let begin = indexItem.begin;
+
+        result = result + str.substring(index, begin) + replaceStr;
+        index = indexItem.end + 1;
+
+        if (i == indexArr.length - 1) {
+            result = result + str.substring(index);
+        }
+    }
+
+    return result;
+}
+
+export {
+    replaceStrFormIndexArr
+}