[Node.js] 關於 console.log 的格式化輸出

console.log(‘%s‘, ‘This is String.‘);
console.log(‘%s %s %s‘, ‘This‘, ‘is‘, ‘String.‘);
console.log(‘%s‘, ‘This‘, ‘is‘, ‘String.‘);
console.log(‘%s:%s‘, ‘This‘, ‘is‘);
console.log(‘%s-%s‘, ‘This‘, ‘is‘);
console.log(‘%‘);
console.log(‘%%‘);

console.log(8+0.8);
console.log(‘%d‘, 8, 8.8);
console.log(‘%d-%d‘, 8.8, 8.0);
console.log(‘%d‘, 8+8, 8-8, 8*8, 8/8);
console.log(‘%d‘, ‘8+8‘);
console.log(8/0);

var json_data = {
  OS: ‘Mac‘,
  Version: ‘EI‘,
  Language: [‘English‘, ‘Chinese‘]
};
console.log(‘%j‘, json_data);