added the function repeatString

Author: Grajales-K

Sprint-3/revise/implement/repeat.js

@@ -0,0 +1,50 @@
+// Implement a function repeat
+
+// Given a target string str and a positive integer count,
+// When the repeat function is called with these inputs,
+// Then it should:
+
+// case: repeat String:
+// Given a target string str and a positive integer count,
+// When the repeat function is called with these inputs,
+// Then it should repeat the str count times and return a new string containing the repeated str values.
+
+// case: handle Count of 1:
+// Given a target string str and a count equal to 1,
+// When the repeat function is called with these inputs,
+// Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition.
+
+// case: Handle Count of 0:
+// Given a target string str and a count equal to 0,
+// When the repeat function is called with these inputs,
+// Then it should return an empty string, ensuring that a count of 0 results in an empty output.
+
+// case: Negative Count:
+// Given a target string str and a negative integer count,
+// When the repeat function is called with these inputs,
+// Then it should throw an error or return an appropriate error message, as negative counts are not valid.
+
+function repeatString(str, count){
+    let newWords = "";
+ //if count is greater than 1 if so repeat string count times 
+ //else if count is 1 return the string  
+ //else if count is 0 return empty string 
+ //else if count is negative return error
+    if(count > 1){
+        for(let i = 0; i < count; i++){
+            newWords =  newWords + str + " "
+            
+        } 
+        return newWords.trimEnd();
+    }
+    else if(count === 0){
+        return "";
+    }
+    else if(count < 0 ){
+        console.error("error your number is negative");
+
+    }
+        
+}
+
+console.log(repeatString("karla", -1))