主打的就是一蠢

123

var x = "abc"; // 不清楚x的用途function a(b, c, d) {// 一堆未注释的代码...// ...
}// 混合使用单引号和双引号
var message = "It's a beautiful day!";

fetch("https://xxx/api/data").then(response => response.json()).then(data => {// 未处理可能的网络或解析错误console.log(data);});

// 地狱级回调
let play = function(){this.installBox();this.step1(function(){this.step2(function(){this.step3(function(){this.step4(function(){this.step5(function(){this.step6(function(){this.step7(function(){this.step8(function(){this.step9(function(){this.stepN(function(){// N + 1 ......});});});});});});});});});});
}

// 毫无意义的if语句
return kRegex.test(value);if (kRegex.test(value)) {return true;
} else {return false;
}if (userAge >= 18) {if (userAge <= 65) {// 如果用户年龄大于等于18且小于等于65，执行某些操作} else {// 如果用户年龄大于等于18但大于65，执行某些操作}
} else {// 如果用户年龄小于18，执行某些操作
}if (x > 42) {
// 魔法数值 42
}

// Zhuangbility 
// Boolean
!!'fuck'// ParseInt
~~3.14159 === parseInt(3.14159)// 十六进制
(~~(Math.random()*((1<<24)-1))).toString(16)+'00000').substring(0,7)// <<
parseInt('1000000000000000000000000', 2) === (1 << 24)
Math.pow(2,24) === (1 << 24)

// switch 判断冗余
let startDay = 0 
let endDay = 1  
switch (query.birth) {case  '0~1' :  //当天过生日startDay = 0endDay = 1breakcase  '1~8' :  //1~8天过生日startDay = 1endDay = 8breakcase  '8~16' :  //8~16天过生日startDay = 8endDay = 16breakcase  '16~31' :  //16~31天过生日startDay = 16endDay = 31breakcase  '31~999' :  //31天以后天过生日startDay = 31endDay = 999break
}

// 每个判断都要执行一次
if (productClass ===  Card  && action === BUYCARD) {seneca.sendSms(smsData, params)
}
if (productClass ===  Card  && action === TURNCARD) {seneca.patchStatus(productId)
}
if (productClass ===  Card  && action === REPLACE) {seneca.changeStatus( crm ,  Card )
}
if (productClass ===  Lesson ) {seneca.changeStatus( course ,  Lesson )
}
...