twine

Javascript:
if (typeof window.CustomScripts == "undefined") {
    window.CustomScripts = {
        updateVariable(inputName) {
            // Get the value from the input textbox at time of click.
            var value = $("input[name='" + inputName + "']")[0].value;
            // Update the variable.
            State.variables[inputName] = value;
        }
    };
};

Passage Code:


"What is your name?"

"My name is...
(set: $fname to "")
<input type="text" name="fname" value="">
<button type="submit" onclick="CustomScripts.updateVariable('fname')">yes...that is my name...</button>"



(if: $fname is not "")[[Proceed->Act 0: Class Select]]