javascript - How to count the number of characters without spaces?

Question

I'm new to this, so please understand me;/

I'm creating an app in appery.io and it has to count the number of letters of text inserted by the app user(without spaces).

I have an input field created(input), a button to press and show the result in a label(result)

the code for the button:

var myString = getElementById("input");

var length = myString.length;

Apperyio('result').text(length);

Can you please tell me what is wrong?

Answer 1

To ignore a literal space, you can use regex with a space:

// get the string
let myString = getElementById("input").value;

// use / /g to remove all spaces from the string
let remText = myString.replace(/ /g, "");

// get the length of the string after removal
let length = remText.length;

To ignore all white space(new lines, spaces, tabs) use the s quantifier:

// get the string
let myString = getElementById("input").value;

// use the s quantifier to remove all white space
let remText = myString.replace(/s/g, "")

// get the length of the string after removal
let length = remText.length;