watch

I'm attempting to set up a watch in AngularJS and I'm clearly doing something wrong, but I can't quite figure it out. The watch is firing on the immediate page load, but when I change the watched value it's not firing. For the record, I've also set up the watch on an anonymous function to return the watched variable, but I have the exact same results. I've rigged up a minimal example below, doing everything in the controller. If it makes a difference, my actual code is hooked up in directives, but both are failing in the same way. I feel like there's got to be something basic I'm missing, but

1.想拷贝别人项目到自己帐号下就fork一下。 2.持续关注别人项目更新就star一下 3.watch是设置接收邮件提醒的。 ******************************************************** fork别人代码后你自己的主页里面就有了copy的一份代码，你可以自己修改，觉得原作者写的渣，可以把你的修改作品push到你的GitHub仓库，然后还可以给原作者发送pull request，申请他接收你的修改（他有权利拒绝或者接受） 来源： CSDN 作者： 湾区人工智能 链接： https://blog.csdn.net/BTUJACK/article/details/80823556

I'm trying to watch for changes in a service from a controller. I tried various things based on many qns here on stackoverflow, but I've been unable to make it work. html: <div ng-app="myApp"> <div ng-controller="MyCtrl"> <div ng-click="setFTag()">Click Me</div> </div> </div> javascript: var myApp = angular.module('myApp',[]); myApp.service('myService', function() { this.tags = { a: true, b: true }; this.setFalseTag = function() { alert("Within myService->setFalseTag"); this.tags.a = false; this.tags.b = false; //how do I get the watch in MyCtrl to be triggered? }; }); myApp.controller('MyCtrl

How can I add an expression to watch in Xcode 4? This should be very obvious, but it is not. It does not seem to be down any menu or available on a contextual click. It would be nice if I could highlight a variable or expression and then "Add to watch" or "Add expression". Andrew Brown I don't know that there is an option to create a watch expression directly from Xcode 4's code window. If there's something in the code window you'll want to add an expression watch for, I think you'll have to copy that code to the clipboard. Then while debugging, make sure the debug area is being shown. It is

I'm having an issue with custom directives that's driving me crazy. I'm trying to create the following custom (attribute) directive: angular.module('componentes', []) .directive("seatMap", function (){ return { restrict: 'A', link: function(scope, element, attrs, controller){ function updateSeatInfo(scope, element){ var txt = ""; for (var i in scope.seats) txt = txt + scope.seats[i].id + " "; $(element).text("seat ids: "+txt); } /* // This is working, but it's kind of dirty... $timeout(function(){updateSeatInfo(scope,element);}, 1000); */ scope.$watch('seats', function(newval, oldval){ console

计算属性 computed:{ 变量:function(){ return 计算好的值 } } 这时候计算好的值 就付给了你的变量 在实例中可以this.使用 注意 声明的变量的data中不可以重复声明否则报错 <template> <div class="watch"> <input type="text" v-model="msg" /> <input type="text" v-model="comsg" /> </div> </template> <script> export default { name: "watch", data() { return { msg: "123" }; }, methods: {}, computed: { comsg: function() { return this.msg .split("") .reverse() .join(""); } } }; </script>效果:初始有值的时候 就已经计算了，并且监听数据改变重新计算 计算属性的getter 和setter:以上我们举例的是默认的getter。 在你需要时，也可以提供一个setter 函数， 当手动修改计算属性的值就像修改一个普通数据那样时，就会触发setter 函数，执行一些自定义的操作 getter/setter语法 computed: { 变量: { get:

Some commands that I use display colors, but when I use them with watch the colors disappears: watch -n 1 node file.js Is it possible to have the colors back on somehow? Dennis Williamson Some newer versions of watch now support color. For example watch --color ls -ahl --color . Related . Do not use watch ... When you use watch programs can detect they're not writing to a terminal and then strip the color. You must use specific program flags to keep the control codes there. If you don't know the flags or there isn't you can make a poor's man watch by: while sleep <time>; do clear; <command>;

I need some help with an ng-model created with ng-bind-html. I have a JSON file in the server in which I have some html and some inputs like this: *.json { "test": { "1": { "question":"<span>1. something:</span>", "options":"<input type='radio' name='q1' ng-model='q.1' value='a'>a) op 1<br><input type='radio' name='q1' ng-model='q.1' value='b'>b) op 2<br><input type='radio' name='q1' ng-model='q.1' value='c'>c) op 3<br><input type='radio' name='q1' ng-model='q.1' value='d'>d) op 4<br><input type='radio' name='q1' ng-model='q.1' value='e'>e) op 5<br>", "answer":"c" }, "2": { ... } } } Then in