watch

Watch for object properties changes in JavaScript [duplicate]

由 时光毁灭记忆、已成空白 提交于 2019-11-26 15:01:27
Possible Duplicate: Javascript Object.Watch for all browsers? I just read Mozilla's documentation for the watch() method . It looks very useful. However, I can't find something similar for Safari. Neither Internet Explorer. How do you manage portability across browsers? I have created a small object.watch shim for this a while ago. It works in IE8, Safari, Chrome, Firefox, Opera, etc. /* * object.watch v0.0.1: Cross-browser object.watch * * By Elijah Grey, http://eligrey.com * * A shim that partially implements object.watch and object.unwatch * in browsers that have accessor support. * *

AngularJS watch array of objects for data change

由 一曲冷凌霜 提交于 2019-11-26 12:43:23
问题 I\'m implementing a shopping cart and want to store the data in localStorage. I want to watch the variable $scope.cart for change so that I can update the localStorage The cart variable looks like this: [{\'name\':\'foo\', \'id\':\'bar\', \'amount\': 1 },...] This is the code for the watch. $scope.updateCart = function(){ localStorageService.add(\'cart\',JSON.stringify($scope.cart)); alert(\'cart updated\'); }; $scope.$watch($scope.cart, $scope.updateCart(), true); This is the HTML where the

Break on a change of variable value

由 旧时模样 提交于 2019-11-26 09:44:03
问题 Similar to other questions here, like this one. Is there a way to break on the change of a variable value in any JavaScript debugger? (like IE Developer tools, Visual Studio, or Firebug)? I guess it\'s something like a \"watch variable\", but I want to be able to see the callstack and pause it when the change to the variable actually occurs. An alternative approach might be to override the value setting with a custom setter, and put a breakpoint in that, but unfortunately that won\'t work for

Is there a command like “watch” or “inotifywait” on the Mac?

由 淺唱寂寞╮ 提交于 2019-11-26 09:10:02
I want to watch a folder on my Mac (Snow Leopard) and then execute a script (giving it the filename of what was just moved into a folder (as a parameter... x.sh "filename")). I have a script all written up in bash (x.sh) that will move some files and other stuff on input $1 I just need OSX to give me the file name when new files/folders are moved/created into a dir. Any such command? cwd fswatch fswatch is a small program using the Mac OS X FSEvents API to monitor a directory. When an event about any change to that directory is received, the specified shell command is executed by /bin/bash If

Watch for object properties changes in JavaScript [duplicate]

由 懵懂的女人 提交于 2019-11-26 04:07:27
问题 Possible Duplicate: Javascript Object.Watch for all browsers? I just read Mozilla\'s documentation for the watch() method. It looks very useful. However, I can\'t find something similar for Safari. Neither Internet Explorer. How do you manage portability across browsers? 回答1: I have created a small object.watch shim for this a while ago. It works in IE8, Safari, Chrome, Firefox, Opera, etc. /* * object.watch v0.0.1: Cross-browser object.watch * * By Elijah Grey, http://eligrey.com * * A shim

How to deep watch an array in angularjs?

由 我的未来我决定 提交于 2019-11-26 02:56:12
There is an array of objects in my scope, I want to watch all the values of each object. This is my code: function TodoCtrl($scope) { $scope.columns = [ { field:'title', displayName: 'TITLE'}, { field: 'content', displayName: 'CONTENT' } ]; $scope.$watch('columns', function(newVal) { alert('columns changed'); }); } But when I modify the values, e.g. I change TITLE to TITLE2 , the alert('columns changed') never popped. How to deep watch the objects inside an array? There is a live demo: http://jsfiddle.net/SYx9b/ Piran You can set the 3rd argument of $watch to true : $scope.$watch('data',

How to deep watch an array in angularjs?

由 无人久伴 提交于 2019-11-26 01:12:36
问题 There is an array of objects in my scope, I want to watch all the values of each object. This is my code: function TodoCtrl($scope) { $scope.columns = [ { field:\'title\', displayName: \'TITLE\'}, { field: \'content\', displayName: \'CONTENT\' } ]; $scope.$watch(\'columns\', function(newVal) { alert(\'columns changed\'); }); } But when I modify the values, e.g. I change TITLE to TITLE2 , the alert(\'columns changed\') never popped. How to deep watch the objects inside an array? There is a

Is there a command like “watch” or “inotifywait” on the Mac?

由 你说的曾经没有我的故事 提交于 2019-11-26 01:09:52
问题 I want to watch a folder on my Mac (Snow Leopard) and then execute a script (giving it the filename of what was just moved into a folder (as a parameter... x.sh \"filename\")). I have a script all written up in bash (x.sh) that will move some files and other stuff on input $1 I just need OSX to give me the file name when new files/folders are moved/created into a dir. Any such command? 回答1: fswatch fswatch is a small program using the Mac OS X FSEvents API to monitor a directory. When an

AngularJS : How to watch service variables?

由 房东的猫 提交于 2019-11-25 23:17:22
问题 I have a service, say: factory(\'aService\', [\'$rootScope\', \'$resource\', function ($rootScope, $resource) { var service = { foo: [] }; return service; }]); And I would like to use foo to control a list that is rendered in HTML: <div ng-controller=\"FooCtrl\"> <div ng-repeat=\"item in foo\">{{ item }}</div> </div> In order for the controller to detect when aService.foo is updated I have cobbled together this pattern where I add aService to the controller\'s $scope and then use $scope.

How do I watch a file for changes?

由 半腔热情 提交于 2019-11-25 22:56:13
问题 I have a log file being written by another process which I want to watch for changes. Each time a change occurs I\'d like to read the new data in to do some processing on it. What\'s the best way to do this? I was hoping there\'d be some sort of hook from the PyWin32 library. I\'ve found the win32file.FindNextChangeNotification function but have no idea how to ask it to watch a specific file. If anyone\'s done anything like this I\'d be really grateful to hear how... [Edit] I should have
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