JavaScript Program to Generate a Range of Numbers and Characters

Do you need a JavaScript app that can randomly produce text or numbers? Put away your search! The purpose of this article is to introduce a JavaScript programme that can quickly and easily generate random characters and numbers.

In a nutshell, this app will assist you in producing a random string of numbers and letters. The beginning and ending values, in addition to the sequence type, are all up for grabs (numbers or characters). Following that, the sequence will be generated by the programme and shown to the user.

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How To Generate a Range of Characters

In the program given below, a range of numbers and characters is generated between the upper and the lower bounds.

• The iterate generator function is basically used to iterate through lower and upper bounds.
• The spread syntax ... is then used to include all the elements returned by the iterate function.
• The charCodeAt() method takes in an index value and returns an integer representing its UTF-16 code.
• The map() method iterates through all the array elements.
• The fromCharCode() method converts the Unicode values executed into characters.

// JavaScript Program to generate a range of numbers and characters

function* iterate(a, b) {
  for (let i = a; i <= b; ++i ) 
    yield i
}

function range(a, b) {
    if(typeof a === 'string') {
        let res = [...iterate(a.charCodeAt(), b.charCodeAt())].map(n => String.fromCharCode(n));
        console.log(res);
    }
    else {
        let result = [...iterate(a, b)];
        console.log(res);
    }
}

range(1, 10);
range('A', 'E');

[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]
[ "A", "B", "C", "D", "E" ]

Conclusion

In conclusion, learning how to code in JavaScript by creating a program that generates random numbers and characters can be a lot of fun. Web designers can benefit greatly from its use if they strive to build interactive and interesting websites. Unique user experiences that stand out from the crowd are possible with this program.

To generate random numbers and characters, JavaScript is a useful tool for any programmer, no matter how much experience they have. JavaScript is a must-know language for any web developer thanks to its easy syntax and numerous uses.