emtiazahmed27

//write a function that checks whether an input is palindrome or not.
function check(input){
    if(isNaN(input)){
        const len = input.length;
        for (let i = 0; i < len / 2; i++) {
            if (input[i] !== input[len - 1 - i])    return false;
        }
        return true;
    }
    else {

emtiazahmed27

//Write a function that counts words in a String
function wordCount(str){
    let arr=str.split(" ");
    return arr.filter((word)=>word!="").length;
}
console.log(wordCount("javaScript exam e bash khabo please wish me    luck    "));
console.log(wordCount("javaScript exam e bash khabo please wish me luck"));

//output: 9

emtiazahmed27

//write a function that truncates "a", "z", "c"
function truncate(str){
    let str2=str.toLowerCase();
    let res="";
    for(let i=0; i<str2.length; i++){
        if(str2[i]=="c"|| str2[i]=="a"||str2[i]=="z") res+="";
        else res+=str2[i];
    }
    return res;
}