继续

1.按钮点击颜色固定

    $(".productbtn").click(function() {
            $(".productbtn").removeClass('active')
            $(this).addClass('active')
    })

2.删除git分支

git push origin --delete 分支名称

3.git添加tag，并push到远程仓库

    git tag -a v0.1.0 -m "0.1.0版本"
    git push origin v0.1.0

4.替换字符串中一部分为‘*’

    var str = "123456789"
    var re = /([\s\S][2]([\s\S]{3}))/
    console.log(str.replace(re,"$1******"))

5.git为单个仓库的用户名邮箱配置

当再单个仓库中设置了用户名和邮箱，就会代替全局的用户名和邮箱

    $ git config user.name "用户名"
    $ git config user.email "邮箱"

6.jquery将文字超出部分变成省略号

    $(function() {
        $('[data-toggle="tooltip"]').tooltip()
        var arr = $('.description')
        console.log(arr)
        for(var i =0 , len = arr.length;i < len;i++){
                var j = arr[i].innerHTML
                console.log(j+"  "+j.length)
                if (j.length>30) {
                     j = j.substr(0, 30) + "..."        
                }
                console.log("转换后："+j)
                $('.description')[i].innerHTML = j
        }
    });

7.bootstrap按钮将值传到模态框

    <button data-toggle="modal" data-target="#del" ng-click="setId(x.id)">删除</button>

将场景id存入变量

    $scope.setId = function(x) {
      $log.log(x)
      $scope.sceneId = x
    }

模态框

    <div class="modal fade sceneManageDelPop" tabindex="-1" role="dialog" id="del">
            <div class="modal-dialog " role="document">
                <div class="modal-content">
                    <header>
                        <span>删除场景提示</span>
                    </header>
                    <section>
                        ![](images/equipmentDetails/u3613.png)
                        <p id="p1">确认删除此场景？</p>
                        <p id="p2">删除后，已启用此场景的设备将失去联动。请注意，场景不可恢复，需重新添加。</p>
                    </section>
                    <footer>
                        <button type="button" class="ok" ng-click="deleteScene(sceneId)" data-dismiss="modal">确认</button>
                        <button type="button" class="cancel" data-dismiss="modal">关闭</button>
                    </footer>
                </div>
            </div>
        </div>

8.省市县三级联动

演示地址：http://runjs.cn/detail/bgz1lnhz

1）清空select

select.length = 0

2）核心代码

    /数组转成对象
            function arrToObject(arr) {
                var paramobj = {};
                arr.forEach(function(v, i) {
                    paramobj[v.name] = v; //特征值，这里使用name
                })
                return paramobj
            }
            var somedata = arrToObject(provinceList)
                //遍历省
            var provincearr = []
            for (var i = 0, len = provinceList.length; i < len; i++) {
                provincearr.push(provinceList[i].name)
            }
            var province = document.getElementById('province')
            var city = document.getElementById('city')
            var area = document.getElementById('area')
            /**显示到下拉列表
           * @param x 下拉
           * @param arr 数组
           */
            function pushToOption(x, arr) {
                for (var i = 0, len = arr.length; i < len; i++) {
                    x.options[i] = new Option(arr[i], arr[i])
                }
            }
            pushToOption(province, provincearr)
            // 省下拉改变触发函数
            var cityobj = {}
            function provincesel(x) {
                city.length = 0
                area.length = 0
                //市辖区和县的选择
                var citylen = somedata[x].cityList.length
                var cityarr = []
                for (var i = 0; i < citylen; i++) {
                    cityarr[i] = somedata[x].cityList[i].name
                }
                pushToOption(city, cityarr)
                cityobj = arrToObject(somedata[x].cityList)
            }
            //市辖区下拉改变触发函数
            function citysel(x) {
                area.length = 0
                pushToOption(area, cityobj[x].areaList)
            }

9.ubuntu安装nodejs

1）nvm

wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | bash

2）安装nodejs

nvm install 8.4.0

10.ng将数字转变成相应长度的数组

    $scope.scannum = Array.from({ length: 你的数字 }, (n, i) => i);

11.ng点击按钮增加div

    <ul>
       <li ng-repeat="item in list"><a href="">test</a></li>
    </ul>

会报错

    Duplicates
     in a repeater are not allowed. Use ‘track by‘ expression to specify 
    unique keys. Repeater: c in shopCount, Duplicate key: 
    undefined:undefined

将ng-repeat中内容改为

ng-repeat="item in list track by $index"

即可解决

12.ng,directive报错：Error: [$compile:tplrt] Template for directive 'editScene' must have exactly one root element.

replace属性为true时，会替换directive指向的元素。为false时，将directive的内容作为子元素插入到directive指向的元素。默认的replace为false
replace为true时，template就只能有一个根元素
例如：

如果像下面，有多个根元素向下面，有多个根元素，且replace为true，那么就会报错

13.ng过滤器，过滤时间

    app.filter('currentDate', function(){
            return function(text){
                    var date = new Date(text).toLocaleString()
                    return date
            }
    })