nl_tokens: Transform a given input value using a property spec object . propSpec : an object that defines a Backprop property . Supported keys ( see the README for explanations ) include : coerce choices trim max min inputVal : the value that the caller has assigned to the property fallbackValue ( optional ) : a default value to use if the input is invalid
pl_tokens: function transformValue ( propSpec , inputVal , fallbackValue ) { var value = inputVal ; if ( typeof propSpec . coerce === 'function' ) value = propSpec . coerce ( value ) ; // If an array of choices was passed in, validate that the input is one of // the valid choices: var choices = propSpec . choices ; if ( choices && choices . constructor && choices . constructor . name === 'Array' ) { if ( choices . indexOf ( value ) === - 1 ) { if ( fallbackValue !== undefined ) value = fallbackValue ; else return undefined ; } } if ( propSpec . trim && ( typeof value . trim === 'function' ) ) value = value . trim ( ) ; if ( propSpec . max && ( value > propSpec . max ) ) <mask> = propSpec . max ; if ( propSpec . min && ( value < propSpec . min ) ) value = propSpec . min ; return value ; }