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.


Comments

Post a Comment

Popular posts from this blog

javascript - jQuery: Add class depending on URL in the best way -

i have html progress meter: <div class="col-md-3" style="margin-left: -20px;"> <div class="progress-pos active" id="progess-1"> <div class="progress-pos-inner"> login </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-2"> <div class="progress-pos-inner"> scan items </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-3"> <div class="progress-pos-inner"> confirm address </div> </div> </div> <div class="col-md-3 progress-pos-container"> <div class="progress-pos" id="progess-4"> <div class="progress-pos-in
Read more

caching - How to check if a url path exists in the service worker cache -

i need check if particular url path exists in service worker cache. example, suppose url is: /myserviceworker/service?a=110&b=70 this url exists in cache, there many of them different values of , b. now, suppose want refresh of these urls, how can that? i want know how access key values service worker cache. if know key, plan follows: var url = new url(key); if(url.pathname === "\/myserviceworker/service") refetch key but not sure how cache key , in format is. mean, string or url? cache api has match() method returns promise resolving in response object if match or undefined if no match exists. second parameter object can specify ignoresearch not take account url parameters. the ignoresearch option supported firefox ( chrome status here ). in other hand, retrieve cache entries, can use keys() method.
Read more

Redirect to a HTTPS version using .htaccess -

i need modify .htaccess file redirect urls https version without "www". http://example.com --> https://example.com http://www.example.com --> https://example.com https://www.example.com --> https://example.com this how .htaccess file looks like: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^(.*)$ redirect.php?id=$1&page=$2 [qsa,l] what modifications need make .htaccess in order forward https without "www"? it depends on doing current code. looks file called redirect trying display php page seo friendly url. think might confusing people. anyway, need , force https without www, need 1 more rule above. also second rule needs two capture groups in rewriterule test string because wanting 2 different values using $1 , $2 references. rewriteengine on #rediect www non www and/or http https --- combinations. rewritecond %{http_host} !^example\.com [nc,or] rewritecond %{https} !^
Read more