console.log print summary, output font color, other styles, etc.

common printing

console.log()    // 打印日志
console.debug()  // 打印调试
console.error()  // 打印错误
console.info()   // 打印信息
console.warn()   // 打印警告
console.assert() // 打印断言
console.clear()  // 清空

%cIndicates css style

console.log('%cHello', 'color: #43bb88;font-size: 24px;font-weight: bold;text-decoration: underline;');

Example:

console.log('%c字符：','color:red', val)
//          文字提示    样式         变量值

Variable prints:

console.log('%当前环境：' + val, 'color:bule')

simplify:

console.log('%cHello', 'color: red');

%drepresent numbers

console.log('%d', 123);

%iRepresents an integer number

console.log('%i', 123);

%oRepresents a DOM element

console.log('%o', document.body);

%ORepresents a javascript object

console.log('%O', new Date());