How to set a range for how much letters are being typed in in an input form in react?-CodePudding

I am currently making password strength checker and I want to check the length of the password and determine the strength of the password. But I do not know how to check the length of the password so that it is like "between 5 and 10 words" or "between 20 to 30 words"

import React from "react";
import { useState } from "react";

const Password = () => {

    const [password, setPassword] = useState("")

    const HandleInputChange = (event) => {
        setPassword(event.target.value)
    }

    const letters = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
    const capsLetters = ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]
    const numbers = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"]
    const specialChar = ["!", "@", "#", "$", "%", "^", "&", "*", "(", ")"]

    const slicedLetters = letters.slice(...letters)
    const slicedCapsLetters = capsLetters.slice(...capsLetters)
    const slicedNumbers = numbers.slice(...numbers)
    const slicedSpecialChar =   specialChar.slice(...specialChar)

    const [passwordStrength, setPasswordStrength] = useState()

// I am working with this function 
    const StrengthCheck = () => {
        if(password.includes(slicedLetters || capsLetters)) {
            setPasswordStrength("Very Weak")
        } else if(password.includes(slicedLetters && slicedNumbers || slicedCapsLetters)) {
            setPasswordStrength("Weak")
        } else if(password.includes(slicedLetters && slicedNumbers && slicedSpecialChar || slicedCapsLetters)) {
            setPasswordStrength("Medium")
        } else if(password.includes(slicedLetters && slicedCapsLetters && slicedSpecialChar || slicedNumbers)) {
            setPasswordStrength("Strong")
        } else if(password.includes(slicedLetters && slicedCapsLetters && slicedNumbers && slicedSpecialChar)) {
            setPasswordStrength("Very Strong")
        } else {
            setPasswordStrength("Invalid Password to Check!")
        }
    }

    return(
        <div>
            <h1>Password Strength Checker</h1>
            <h3>Your Password</h3>
            <input type={"text"} value={password} onChange={HandleInputChange}/>
            <button onClick={StrengthCheck}>Confirm</button>
            <h3>Password display:</h3>
            <input type={"password"} value={password}/>
            <br/>
            <br/>
            <hr/>
            Your password strength is: <b>{passwordStrength}</b>
        </div>
    )
}

export default Password

CodePudding user response：

There are many ways to do that. Your StrengthCheck function is not perfectly shaped and for considering the length you can create an array something like this,

const LengthChecker = [10,20,30,40,50]

After this, You can check this by,

var length = text.length;
var _index;
LengthChecker.map((item, index) => {
 if(length < item){
  _index = index;
    break;
}
}
});
console.log(LengthChecker(_index)

CodePudding user response：

You can use the property maxLength={} for having a max length.

For checking the length for measurement purposes you can do value.length or something