test_163:/home/exenode/part3/module_exports # more calc.js
module.exports = {
sum:function() {
var result = 0;
for (var i in arguments) {
if (!isNaN(arguments[i])){
result += parseFloat(arguments[i]);
}
}
return result;
},
};
test_163:/home/exenode/part3/module_exports # more index.js
var calc = require(‘./calc’);
console.log(‘calc:’, calc.sum(1,20,34,-9,56));
test_163:/home/exenode/part3/module_exports #
test_163:/home/exenode/part3/module_exports # node index.js
calc: 102
