JavaScript: Capitalize the first letter of each word of a given string
JavaScript Basic: Exercise-50 with Solution
Write a JavaScript program to capitalize the first letter of each word of a given string.
Pictorial Presentation:

Sample Solution:
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JavaScript program to capitalize the first letter of each word of a given string.</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function capital_letter(str)
{
str = str.split(" ");
for (var i = 0, x = str.length; i < x; i++) {
str[i] = str[i][0].toUpperCase() + str[i].substr(1);
}
return str.join(" ");
}
console.log(capital_letter("Write a JavaScript program to capitalize the first letter of each word of a given string."));
Sample Output:
Write A JavaScript Program To Capitalize The First Letter Of Each Word Of A Given String.
Flowchart:

ES6 Version:
function capital_letter(str)
{
str = str.split(" ");
for (let i = 0, x = str.length; i < x; i++) {
str[i] = str[i][0].toUpperCase() + str[i].substr(1);
}
return str.join(" ");
}
console.log(capital_letter("Write a JavaScript program to capitalize the first letter of each word of a given string."));
Live Demo:
See the Pen JavaScript - capitalize the first letter of each word of a given string - basic-ex-50 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript program to replace every character in a given string with the character following it in the alphabet.
Next: Write a JavaScript program to convert a given number to hours and minutes.
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JavaScript: Tips of the Day
Returns the sum of the powers of all the numbers from start to end (both inclusive)
Example:
const sumPower = (end, power = 2, start = 1) => Array(end + 1 - start) .fill(0) .map((x, i) => (i + start) ** power) .reduce((a, b) => a + b, 0); console.log(sumPower(10)); // 385 console.log(sumPower(10, 3)); // 3025 console.log(sumPower(10, 3, 5)); // 2925
Output:
385 3025 2925
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