javascript - 突出显示数组中的单词

Question

我想标记数组中的单词。

$scope.arrayFilter=["mom","is","beautifull"];

但只有当我按照出现的顺序排列单词时，它才对我有用。我希望无论单词的顺序如何，只要它们匹配就会被标记出来。如果我向数组中添加一个新单词，它也应该被标记。

https://jsfiddle.net/1x7zy4La/

<li ng-repeat="item in data ">
  <span ng-bind-html="item.title | highlight:arrayFilter"></span>
</li>

  $scope.arrayFilter=["mom","is","beautifull"];
  $scope.data = [{
    title: "mom is beautifull"
  }, {
    title: "my mom is great"
  }, {
    title: "I hate the matematics"
  }];
});

app.filter('highlight', function($sce) {
return function(text, arrayFilter) {
    var stringToDisplay = '';
    angular.forEach(arrayFilter,function(key,value){
        if(text.includes(key)){
          stringToDisplay =  stringToDisplay.concat(key).concat(" ");
        }
    })
   stringToDisplay =  stringToDisplay.substring(0, stringToDisplay.length - 1);
   return $sce.trustAsHtml(text.replace(new RegExp(stringToDisplay, 'gi'), '<span class="highlightedText">$&</span>'));

}
});

Answer 1

问题是您正在连接您的键 - 将您的过滤器更改为:

app.filter('highlight', function($sce) {
  return function(text, arrayFilter) {
    angular.forEach(arrayFilter, function(key, value) {
      if (text.includes(key)) {
        text = text.replace(new RegExp(key, 'gi'), '<span class="highlightedText">$&</span>')
      }
    })
    return $sce.trustAsHtml(text);
  }
});

参见 updated jsfiddle或下面的演示:

var app = angular.module('testApp', []);
app.controller('testCtrl', function($scope) {
  $scope.arrayFilter = ["is", "mom", "beautifull"];
  $scope.data = [{
    title: "mom is beautifull"
  }, {
    title: "my mom is great"
  }, {
    title: "I hate the matematics"
  }];
});



app.filter('highlight', function($sce) {
  return function(text, arrayFilter) {
    angular.forEach(arrayFilter, function(key, value) {
      if (text.includes(key)) {
        text = text.replace(new RegExp(key, 'gi'), '<span class="highlightedText">$&</span>')
      }
    })
    return $sce.trustAsHtml(text);
  }
});

.highlightedText {
  background: yellow;
}

<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.8/angular.js"></script>

<div ng-app="testApp" ng-controller="testCtrl">
  <li ng-repeat="item in data ">
    <span ng-bind-html="item.title | highlight:arrayFilter"></span>
  </li>
</div>