我打算问这个问题,但我想出了一个解决方案.所以在这一点上,我正在寻找对我的解决方案的批评.
>我有一个静态textarea,以及一个带有ng-repeat指令的输入.
>当用户在textarea中键入一个句子时,将为句子中的每个单词创建一个输入.
>然后,如果用户更新任何输入中的文本,则更新textarea语句中的相应单词(实际上重新创建整个句子).
演示：http://plnkr.co/edit/bSjtOK?p=preview
问题
请记住,我只有两周时间进入AngularJS学习：
>我是以“棱角分明”的方式写的吗？
>有什么我可以做得更好吗？
>我是否违反任何禁忌？
缩写代码
HTML
<textarea ng-model="sentence" ng-change="parseSentence()" style="width: 100%; height: 15em;"></textarea> <input type="text" ng-repeat="w in words" ng-model="w.word" ng-change="buildSentance(w)" />
JavaScript的
function WordCtrl($scope,debounce) {
$scope.words = [];
$scope.sentence = 'Hello there how are you today?';
// this is called when the textarea is changed
// it splits up the textarea's text and updates $scope.words
$scope.parseSentence = function() {
var words = $scope.sentence.split(/\s+/g);
var wordObjects = [];
for (var i=0;i<words.length;i++) {
wordObjects.push({word: words[i]});
}
if ((words.length == 1) && (words[0] === '')) {
$scope.words = [];
} else {
$scope.words = wordObjects;
}
};
$scope.parseSentenceDebounced = debounce($scope.parseSentence,1000,false);
$scope.buildSentance = function(w) {
var words = [];
for (var i=0;i<$scope.words.length;i++) {
var word = $scope.words[i].word;
if (word.replace(/\s+/g,'') !== '') {
words.push(word);
}
}
$scope.sentence = words.join(' ');
// if the user puts a space in the input
// call parseSentence() to update $scope.words
if (w.word.indexOf(' ') > -1) {
$scope.parseSentenceDebounced();
}
}
$scope.parseSentence();
}
你有趣的问题.我把你的代码放在我的页面上,我注意到的第一件事就是你无法在控制器方法中通过debounce.
下一个问题我注意到你有一个ng-change,用ng-change改变另一个盒子上的值.我将事件更改为Keypress以停止摘要中的摘要.
这是在JSFiddle enter link description here中工作
代码：
HTML
<body ng-app="portal">
<div ng-controller="WordCtrl">
<textarea ng-model="sentence" ng-keypress="parseSentence()" style="width: 100%; height: 15em;"></textarea>
<input type="text" ng-repeat="w in words" ng-model="w.word" ng-keypress="buildSentance(w)" />
</div>
</body>
使用Javascript
angular.module("portal",[]).controller("WordCtrl",function($scope) {
$scope.words = [];
$scope.sentence = 'Hello there how are you today?';
$scope.parseSentence = function () {
var words = $scope.sentence.split(/\s+/g);
var wordObjects = [];
for (var i = 0; i < words.length; i++) {
wordObjects.push({ word: words[i] });
}
if ((words.length == 1) && (words[0] === ''))
{
$scope.words = [];
}
else
{
$scope.words = angular.copy(wordObjects);
}
}
$scope.buildSentance = function (w) {
var words = [];
for (var i = 0; i < $scope.words.length; i++) {
var word = $scope.words[i].word;
if (word.replace(/\s+/g,'') !== '') {
words.push(word);
}
}
$scope.sentence = words.join(' ');
// if the user puts a space in the input
// call parseSentence() to update $scope.words
if (w.word.indexOf(' ') > -1) {
$scope.parseSentenceDebounced();
}
}
$scope.parseSentence();
});
希望这能解决您的问题.
