Write a JavaScript function to check whether a string is blank or not.Test Data :console.log(is_Blank(''));console.log(is_Blank('abc'));truefalse

Sure, here is a simple JavaScript function that checks whether a string is blank or not:

function is_Blank(input) {
    if (input.length === 0)
        return true;
    else
        return false;
}

console.log(is_Blank(''));  // This will return true
console.log(is_Blank('abc'));  // This will return false

This function, is_Blank, takes a string as an input. It checks the length of the string. If the length is 0, that means the string is blank, so it returns true. If the length is not 0, that means the string is not blank, so it returns false.