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JavaScript: Strip leading and trailing spaces from a string

JavaScript String: Exercise-23 with Solution

Write a JavaScript function to strip leading and trailing spaces from a string.

Test Data:
console.log(strip('w3resource '));
console.log(strip(' w3resource'));
console.log(strip(' w3resource '));
Output :
"w3resource"
"w3resource"
"w3resource"

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Write a JavaScript function to strip leading and trailing spaces from a string.</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function strip(str) {
    return str.replace(/^\s+|\s+$/g, '');
}

console.log(strip('w3resource '));
console.log(strip(' w3resource'));
console.log(strip(' w3resource  '));

Sample Output:

w3resource
w3resource
w3resource.

Flowchart:

Flowchart: JavaScript- Strip leading and trailing spaces from a string

Live Demo:

See the Pen JavaScript Strip leading and trailing spaces from a string - string-ex-23 by w3resource (@w3resource) on CodePen.


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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