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，input带有ng-repeat指令。
当用户在textarea中输入一个句子时，会为句子中的每个单词呈现input。
然后，如果用户更新任何input中的文字，textarea句子中的相应字词就会更新（实际上重新创建了整个句子）。
演示：http://plnkr.co/edit/bSjtOK?p=preview
请记住，我只用了两周时间进行AngularJS学习：
<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)" />
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();
}
}
$scope.parseSentence();
}
答案 0 :(得分：1)
你有趣的问题。我把你的代码放在我的页面上，我注意到的第一件事就是你无法在控制器方法中通过debounce。
下一个问题我注意到你有一个ng-change，用ng-change改变另一个盒子上的值。我将事件更改为Keypress以在摘要中停止摘要。
这是在JSFiddle enter link description here
中工作的代码：
<强> HTML
<body ng-app="portal">
<div ng-controller="WordCtrl">
<textarea ng-model="sentence" ng-keypress="parseSentence()" style="width: 100%; height: 15em;"></textarea>
<input type="text" ng-repeat="w in words" ng-model="w.word" ng-keypress="buildSentance(w)" />
</div>
</body>
<强>的Javascript
angular.module("portal",[]).controller("WordCtrl",function($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。