JavaScript: Concatenate a specific string for a specific number of times

JavaScript String: Exercise-13 with Solution

Write a JavaScript function to concatenates a given string n times (default is 1).

Test Data:
console.log(repeat('Ha!'));
console.log(repeat('Ha!',2));
console.log(repeat('Ha!',3));
"Ha!"
"Ha!Ha!"
"Ha!Ha!Ha!"

Pictorial Presentation:

Sample Solution:-

HTML Code:

``````<!DOCTYPE html>
<html>
<meta charset="utf-8">
<title>JavaScript program to concatenates a given string n times (default is 1).</title>
<body>
</body>
</html>
```
```

JavaScript Code:

``````repeat = function repeat(str, count) {
if(typeof(count) == "undefined") {
count =1;
}
return count < 1 ? '' : new Array(count + 1).join(str);
}
console.log(repeat('Ha!'));
console.log(repeat('Ha!',2));
console.log(repeat('Ha!',3));
```
```

Sample Output:

```Ha!
Ha!Ha!
Ha!Ha!Ha!
```

Flowchart:

Live Demo:

See the Pen JavaScript Concatenate a specific string for a specific number of times - string-ex-13 by w3resource (@w3resource) on CodePen.

Improve this sample solution and post your code through Disqus

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.

﻿

JavaScript: Tips of the Day

Tagged template literals

```function getPersonInfo(one, two, three) {
console.log(one);
console.log(two);
console.log(three);
}

const person = 'Lydia';
const age = 21;

getPersonInfo`\${person} is \${age} years old`;
```

If you use tagged template literals, the value of the first argument is always an array of the string values. The remaining arguments get the values of the passed expressions!

Ref: https://bit.ly/323Y0P6