Question

How to check if a string contains identical digits in Node.js

Answer 1

function isStringContainIdenticalDigits(str) {
    const arr = [...str];
    const st = new Set(arr);
 
    return st.size == 1;
}
 
let str = "5555555555";
console.log(isStringContainIdenticalDigits(str) ? "yes" : "no");
 
str = "255555555";
console.log(isStringContainIdenticalDigits(str) ? "yes" : "no");
 
 
 
/*
run:
 
yes
no
 
*/

 

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