javascript - Switch statement to return result only when item type changes -


i have array of content when simplified looks this:

[  { content_type: 1, content_body: "some text" },   { content_type: 1, content_body: "some text" },   { content_type: 2, content_body: "media link" },   { content_type: 1, content_body: "some text" } ]

i need map through array , have switch statement checking content_type , rendering html based on it, (note below syntax uses jsx, might different vanila javascript, pretty self explanatory).

switch(item.content_type) {  case 1:    render (      <div class="text_content">        <p>{item.content_body}</p>      </div>     )   case 2:    render (      <div class="text_media">        <div>{item.content_body}</div>      </div>     ) }

now issue, if same content type follows 1 after in array (so first 2 entries content_type 1 example), want content_bodies rendered inside 1 div, so

<div class="text_content">   <p>{item.content_body}</p>   <p>{item.content_body}</p> </div>

and continue on if next content_type different. (this can repeated several times in app, repeated content_type 1).

what approach this? bear in mind can't manipulate array things nest contents inside object.

if understood approach correctly should work fine. http://codepen.io/anon/pen/zrmejz - working example

code included below. logic on each iteration check if element exists new element inserted inside, if not, create element , add element inside. (note: jquery included library, can away using base js wanted show idea less code)

// sample array   var arr = [    {content_type: 1, content_body: "some text"},    {content_type: 1, content_body: "some text"},    {content_type: 2, content_body: "media link"},    {content_type: 1, content_body: "some text"}    ];    for(var = 0; < arr.length; i++) {    var currentelement = arr[i]; console.log(currentelement.content_body);        switch(currentelement.content_type) {      case 1:        var el = jquery('.text_content');                if(el.length) {          el.append('<p>' + currentelement.content_body + '</p>');        } else {          var el = jquery('<div class="text_content"></div>')          el.append('<p>' + currentelement.content_body + '</p>');          jquery('body').append(el);        }        break;      case 2:        var el = jquery('.text_media');                if(el.length) {          el.append('<div>' + currentelement.content_body + '</div>');        } else {          var el = jquery('<div class="text_media"></div>');          el.append('<p>' + currentelement.content_body + '</p>');          jquery('body').append(el);        }        break;    }  }
.text_content {    border: 1px solid black;  }    .text_content p {    border: 1px solid yellowgreen;  }    .text_media {    border: 1px solid blue;  }
<html>    <body>          </body>  </html>

i hope helps, let me know if requires tweaking. cheers.


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