VueJS2 v-html with filter

Question

How to display raw html with filter?

I have something like this:

K.json = function( json ) {
    if( typeof json!=         


        

Answer 1

For me, as @acdcjunior pointed out, this worked:

<p v-html="$options.filters.json(description)"></p>

Besides that, I had two filters to apply, and it also worked:

<p v-html="$options.filters.filter1($options.filters.filter2(description))"></p>

Answer 2

The issue is that your HTML is processed before the filter is added to your Vue instance. Try like this: JSFiddle

var jsonFormatter = function(json){
    if( typeof json!='string' ) json = JSON.stringify( json, null, 2 );
    json = json.replace( /</g, '&lt;' ).replace( />/g, '&gt;' ); // replace(/&/g, '&amp;')
    var pattern = /("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g;
    var html = json.replace( pattern, function( match ) {
        var cls = 'number';
        var suffix = '';
        if( /^"/.test( match ) ) {
            if( /:$/.test( match ) ) {
                cls = 'key';
                match = match.slice( 0, -1 );
                suffix = ':'
            } else {
                cls = 'string';
            }
        } else if( /true|false/.test( match ) ) {
            cls = 'boolean';
        } else if( /null/.test( match ) ) {
            cls = 'null';
        }
        return '<span class="' + cls + '">' + match + '</span>' + suffix;
    } );
    return html;
}

new Vue({
    el: '#app',
    data(){
        return {
        	jsonData: {dog: 'woof', nestedObject: {cat: 'meow'}}
        }
    },
    filters: {
    	jsonFormatter: jsonFormatter
    }
});
//Vue.filter( 'jsonFormatter', jsonFormatter ); // Doesn't work becuase happens after html is processed

<div id="app" class="container">
     <h1>
        v-html directive
    </h1>
    <div v-html="this.$options.filters.jsonFormatter(jsonData)"></div>
</div>

Answer 3

If you're just displaying the data then create a method:

json(jsonable) {
   return jsonedValue;
}

then in the html

<div v-html="json(mydata)"></div>

Answer 4

For completeness, you have some options, like:

• v-html="$options.filters.FILTERNAME(args)" or
• :inner-html.prop="args | FILTERNAME" or
• v-html="METHODNAME(args)", if you create a method.

See demo below.

function json(text) {
  // do your magic
  return text.toUpperCase(); // just for demo
}

Vue.filter('json', function (value) {
    return json(value);
})

new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue.js!'
  },
  methods: {
    jsonMethod(v) {
      return json(v); // create a "proxy" to the outer function
    }
  }
})

<script src="https://unpkg.com/vue"></script>

<div id="app">
  <p v-html="$options.filters.json(message)"></p>
  
  <p :inner-html.prop="message | json"></p>
  
  <p v-html="jsonMethod(message)"></p>
</div>