How do i check if input is a number (any number) in an array

Question

Im making a bot that prevents users from talking about age, but i have the problem, that i don't know how to solve. If a user inputs "i am (number)" it should reply with " Don't talk about age here!". This is my code (the part i need help with).

var age = ['how old', 'how old am i', 'how old are you', `i am ${!NaN}`];

if (age.includes(message.content)) {
    message.reply('Don't talk about age here!')
}

i am ${!Nan} should be any number but it doesn't work.

you could use the typeof operator developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… — codeanjero
– codeanjero, Commented Mar 27, 2020 at 12:11

codeanjero · Accepted Answer · 2020-03-27 12:46:19Z

1

For the regex you might wanna try something like so :

var age = ['how old', 'how old am i', 'how old are you', 'i am 10'];

if (age[3].match(/(\d+)/)!=null) {
    console.log("Don't talk about age here!")
}

answered Mar 27, 2020 at 12:46

codeanjero

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Ben Aston · Accepted Answer · 2020-03-27 13:20:00Z

1

You can use a regular expression to look for digit (number) characters in the input string.

const containsNumber = (str) => /\d/.test(str)

const result1 = containsNumber('I am 25 years old.')
console.log(result1) // true

const result2 = containsNumber('My age is a secret.')
console.log(result2) // false

And the template literal syntax is as follows:

const myAge = 39
const myString = `I am ${myAge} years old.`
console.log(myString)

edited Mar 27, 2020 at 13:20

answered Mar 27, 2020 at 12:55

Ben Aston

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