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js开启严格模式下疯狂报错

1

1

js基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

app.controller('BackCtrl', function ($scope, $location, $http, $state) {
    "use strict"

    //后台页面控制器

    //菜单
    $scope.menus = [{
            title: '信息管理',
            lists: [{
                    content: '公司列表',
                    url: 'backstage.company'
                },
                {
                    content: '职位列表',
                    url: 'backstage.post'
                },
            ],
            open: false,
            sref: ''
        },
        {
            title: '内容管理',
            lists: [{
                content: 'Article管理',
                url: 'backstage.list'
            }, ],
            open: false,
            sref: ''
        },
        {
            title: '后台管理',
            lists: [{
                    content: '账号管理',
                    url: 'backstage.account'
                },
                {
                    content: '角色管理',
                    url: 'backstage.role'
                },
                {
                    content: '修改管理',
                    url: 'backstage.revision'
                },
                {
                    content: '模块管理',
                    url: 'backstage.module'
                },
            ],
            open: false,
            sref: ''
        },
    ]
    //验证是否登录，未登录禁止访问
    let logined = JSON.parse(sessionStorage.getItem('logined'));
    if (logined !== 0) {
        alert('账号未登录');
        $state.go('login');
    }
    //注销登录
    $scope.logout = function () {
        $http({
            method: 'post',
            url: '/carrots-admin-ajax/a/logout',
            header: {
                'Content-Type': 'application/x-www-form-urlencoded'
            }
        }).then(function (res) {
            console.log(res)
            if (res.data.code === 0) {
                $state.go('login');
                sessionStorage.clear();
            }
        })
    }

    // 子菜单状态保存
    // let currentUrl = $location.path(); //获取当前路由
    // currentUrl = currentUrl.replace(/\//g, '.'); //正则替换掉斜杠
    // currentUrl = currentUrl.slice(1) //删除最前面的斜杠
    // $scope.currentUrl = currentUrl;
    //风琴菜单状态保存
    
    $scope.navtitle = function (index) {
        console.log(index);
        console.log(!$scope.menus[index].open);
        sessionStorage.setItem("session", index)
        sessionStorage.setItem("index0",  !$scope.menus[index].open)
    }
    if (window.sessionStorage.getItem("session") !== null) {
        session = parseInt(window.sessionStorage.getItem("session"))
        index0 = window.sessionStorage.getItem("index0")
        console.log(index0);
        console.log(session);
        $scope.menus[session].open = index0
    }
    //侧边栏高亮
    $scope.aaa = function (x, y) {
        console.log(x, y)
        for (let r = 0; r < $scope.menus.length; r++) {
            for (let i = 0; i < $scope.menus[r].lists.length; i++) {
                $scope.menus[r].lists[i].isOrgancheck = false;
            }
        }
        $scope.menus[x].lists[y].isOrgancheck = true;
        sessionStorage.setItem("sessionx", x)
        sessionStorage.setItem("sessiony", y)
    }
    sessionx = window.sessionStorage.getItem("sessionx")
    sessiony = window.sessionStorage.getItem("sessiony")
    if (sessionx !== null && sessiony !== null) {
        $scope.menus[sessionx].lists[sessiony].isOrgancheck = true;
    }
}

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随机数组的算法问题

0

1

操作DOM 事件

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

 var arr=new Array(3);
    var arr1=new Array(3);
    for(var i=0;i<arr.length;i++) {
        var a= parseInt(Nath.random()*9);
        console.log(a);
        if (i==0) {
            arr[i] = a;
        } else {
            for (var j = 0; j < i; j++) {
                if (a == arr[j]) {
                    i--
                }
                else {
                    arr[i] = a;
                }
            }
        }
    }

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找出三个不同的随机数

0

1

数据类型变量函数操作DOM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

for(var i=0;i<3;i++){
                    arr[i]=oSpan[Math.ceil(Math.random()*8)];
                }

该问题已被官方收录

为什么null>=0是true

1

1

数据类型

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

null>=0;
true

该问题已被官方收录

如何做出不重复的随机数

1

1

js基础

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

// 获取任务一的九个小格子的DOM
var box=document.getElementsByClassName("box");
console.log(box);
// Math变整数
var boxm=Math.ceil(Math.random()*(box.length-1));
// 索引，其中的一个DOM，box和随机数一起打印出来
console.log(box[boxm]);
box[boxm].style.background='red';
var boxm=Math.ceil(Math.random()*(box.length-1));
console.log(box[boxm]);
box[boxm].style.background='yellow';
var boxm=Math.ceil(Math.random()*(box.length-1));
console.log(box[boxm]);
box[boxm].style.background='black';


var my=new Array();
console.log(my);

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随机数去重复的问题？

1

1

操作DOM 函数数据类型

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

var box = $(".box");
var time;


function suiji() {
    var r = Math.floor(Math.random() * 256);
    var g = Math.floor(Math.random() * 256);
    var b = Math.floor(Math.random() * 256);
    return "rgb(" + r + "," + g + "," + b + ")";
}


function org() {
    box[0].style.backgroundColor = "orange";
    box[1].style.backgroundColor = "orange";
    box[2].style.backgroundColor = "orange";
    box[3].style.backgroundColor = "orange";
    box[4].style.backgroundColor = "orange";
    box[5].style.backgroundColor = "orange";
    box[6].style.backgroundColor = "orange";
    box[7].style.backgroundColor = "orange";
    box[8].style.backgroundColor = "orange";
}
// (box1!=box2&&box1!=box3&&box2!=box3)
// (box1!=box2 || box1,box2!=box3 || box2,box1!=box3 || box3)
function df() {
    org();
    var box1 = Math.floor(Math.random() * box.length);
    var box2 = Math.floor(Math.random() * box.length);
    var box3 = Math.floor(Math.random() * box.length);
    if {

        box[box1].style.backgroundColor = suiji();
        box[box2].style.backgroundColor = suiji();
        box[box3].style.backgroundColor = suiji();
    }
    else {
        df()
    }
}

$("#btn1").click(function dfd() {
    clearInterval(time);
    time = setInterval(df, 1000);
});
$("#btn2").click(function () {
    org();
    clearInterval(time);
});

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js在算法中涉及到自增量会影响到变量的赋值吗？

0

1

变量函数

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

var i, temp; // temp is "rval", which may not be an actual variable. 
i = 1;
temp = i;
i = i + 1;
i = temp;
var i = 1;

i = (i++, i); // 2
var i, temp; // temp is "rval", which may not be an actual variable. 
i = 1;
temp = i;
i = i + 1;
i = i;

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函数的转换

0

1

函数

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

function temp() {
    document.getElementById("peoplo").innerHTML = " ";
    var kill = Math.floor(oPlayerNum.value / 3);
    console.log(kill);
    var peoplo = Math.floor(oPlayerNum.value - kill);
    console.log(peoplo);
    var tomo = kill + peoplo;
    lin = tomo;
    console.log(tomo);
    var arr = [];
    for (i = 0; i < kill; i++) {
        arr[i] = "<div class=killnum><span class=tianping></span><span class=juewang>杀手</span></div>";
        console.log(arr[i]);
        have.push(arr[i]);
    }
    var arr2 = [];
    for (i = 0; i < peoplo; i++) {
        arr2[i] = "<div class=killnum><span class=tianpin></span><span class=juewang>平民</span></div>";
        console.log(arr2[i]);
        have.push(arr2[i]);
    }
    var gamenum = arr.concat(arr2);
    _array = gamenum.concat();
    for (var i = gamenum.length; i--;) {
        var j = Math.floor(Math.random() * (i + 1));
        var temp = _array[i];
        _array[i] = _array[j];
        _array[j] = temp;
    }
    console.log(arr);
    console.log(arr2);
    for (var i = 0; i < tomo; i++) {
        var divA = document.getElementById("peoplo");
        divA.innerHTML = divA.innerHTML + _array[i];
    }
    sessionStorage.setItem('key', JSON.stringify(_array));
    console.log(have);
    console.log(oPlayerNum.value);
}

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如何将随机出来的数字应用到格子当中

0

1

事件操作DOM

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

document.write(parseInt(1+9*Math.random()))

该问题已被官方收录

关于洗牌算法如何获取加入数组并获取其中得数

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 截图

class="cursor-pointer"> 代码

//洗牌
function Shuffle(a) {
    var length = a.length;
    for(var i = length - 1, rand;i >= 0; i--){
        rand = Math.floor(Math.random()*(i+1))
        var p = a[i];
        a[i] = a[rand];
        a[rand] = p ;  
    }
}
//设置从0到8的数组a
a = [0,1,2,3,4,5,6,7,8];
//页面加载运行函数，Shuffle（a）
Shuffle(a);

//重置颜色，并随机抽取三个数，赋予其颜色
function clear(){
    var units = document.getElementsByClassName("grid");
    for(var i = 0; i < units.length;i++){
        units[i].style.backgroundColor = "#ff8c00";
    }
    units[a.slice(0,3)[0]].style.backgroundColor = randomlyColor();
    units[a.slice(0,3)[1]].style.backgroundColor = randomlyColor();
    units[a.slice(0,3)[2]].style.backgroundColor = randomlyColor();
    console.log(a.slice(0,3)[0],a.slice(0,3)[1],a.slice(0,3)[2])
}

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