Write and test a function named getDollarAmt that accepts a string in currency format, and returns a number representing the value. For this function, you must use a for loop that processes the string.?

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Examples:?
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getDollarAmt('$120.00') => 120?

getDollarAmt("$23.98") => 23.98?

typeof(getDollarAmt('$1.00')) => number?

Please do not give me this code

function getDollarAmt(s){
return parseFloat(s.substr(1,s.length));
}

Need the code that use a for loop that processes the string.