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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:

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

Sample Solution:-

HTML Code:

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

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

Live Demo:

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


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Previous: Write a JavaScript function to uncamelize a string.
Next: Write a JavaScript function to insert a string within a string at a particular position (default is 1).

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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