JavaScript: Make capitalize the first letter of a string

Last update on November 02 2022 12:29:18 (UTC/GMT +8 hours)

JavaScript String: Exercise-8 with Solution

Write a JavaScript function to capitalize the first letter of a string.

Test Data :
console.log(capitalize('js string exercises'));
"Js string exercises"

Pictorial Presentation:

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Make capitalize the first letter of a string</title>
</head>
<body>
</body>
</html>

JavaScript Code:

capitalize = function(str1){
  return str1.charAt(0).toUpperCase() + str1.slice(1);
}
    
 console.log(capitalize('js string exercises'));

Sample Output:

Js string exercises

Flowchart:

Live Demo:

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Previous: Write a JavaScript function to parameterize a string.
Next: Write a JavaScript function to capitalize the first letter of each word in a string.

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Returns the last element for which the provided function returns a truthy value

Example:

const tips_findLast = (arr, fn) => arr.filter(fn).pop();
console.log(tips_findLast([2, 3, 4, 5, 6], n => n % 2 === 1));

Output:

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