index.js
function(value){
    if(_.isUndefined(value) || !_.isObject(value))
        return false;

    return (value instanceof BigNumber) ? true : false;
}
function(value){
    if(_.isUndefined(value) || !_.isObject(value))
        return false;

    return (value instanceof BigNumber) ? true : false;
}
function ( value ) { if ( _ . isUndefined ( value ) || ! _ . isObject ( value ) ) return false ; return ( value instanceof BigNumber ) ? true : false ; }
Is the object provided a Bignumber object.

@method (isBigNumber)
Is the object provided a Bignumber object .