JavaScript: Generating Random Text with Letters and Numbers

Without further ado, I typed this coding. On um, something. Here goes, a function named generate_something:

function generate_something(a) {
    "use strict";
    var letters = "abcdefghijklmnopqrstuvwxyz";
    var numbers = "0123456789";
    var upper_case = letters.toUpperCase();
    var length = 6;
    if (a !== undefined && a !== null) {
        if (a.constructor === Number) {
            if (a > 0) {
                if (a % 1 === 0) {
                    length = a;
                }
            }
        }
    }
    var result = [];
    var i = 0;
    var splitt = function (a) {
        return a.split("");
    };
    letters = splitt(letters);
    numbers = splitt(numbers);
    upper_case = splitt(upper_case);

    var combination = [letters, numbers, upper_case];
    var randomise = function (a) {
        var l = a.length;
        var ix = Math.floor(Math.random() * l);
        return a[ix];
    };
    var char_picker = function () {
        var which_one = randomise(combination);
        var what_character = randomise(which_one);
        return what_character;
    };
    while (i < length) {
        result.push(char_picker());
        i += 1;
    }
    return result.join("");
}

I suppose you could examine the flow in the typing above. That function above, generate_something, will generate something. It can receive an argument input, which must be an integer from 1 to "unlimited". If the input isn't an integer or it's below 1, the argument will be ignored. Anyway, default length for the generated something (output) is 6.

How to Use

function generate_something(a) {
    ... // the function block above
}

// Then run it as such:
generate_something(8); // Try it on browser console, you'll get an output.

What is That For?

Wull... I'm not sure, usually it is for "server side" logic, maybe. But it can always be translated to other linguic. Why that doesn't answer anything, does it?

Monkey Raptor

Monkey Raptor

Sunday, January 28, 2018

JavaScript: Generating Random Text with Letters and Numbers

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