javascript - Creating a custom table row -


i trying create custom table row having difficulty getting behave properly. i've tried 2 below methods , give bizarre results. realize easy to without custom elements small example of larger project. can change achieve desired result?

class customtablerow extends htmlelement {    constructor(){      super();            var shadow = this.attachshadow({mode: 'open'});            this.tablerow = document.createelement('tr');              var td = document.createelement('td');      td.innertext = "rowtitle";      this.tablerow.appendchild(td);            var td2 = document.createelement('td');      td2.innertext = "rowcontent";      td2.colspan = 4;      this.tablerow.appendchild(td2);        shadow.appendchild(this.tablerow);    }      }    customelements.define('custom-tr', customtablerow);    //attempt 2  var newtr = new customtablerow;  document.getelementbyid('table2body').appendchild(newtr);
td {    border: 1px solid black;  }
<span>attempt 1:</span>  <table>        <thead>      <tr>        <th>one</th>        <th>two</th>        <th>three</th>        <th>four</th>        <th>five</th>      </tr>    </thead>        <tbody>      <custom-tr />    </tbody>      </table>    <hr>    <span>attempt 2:</span>  <table id="table2">      <thead>      <tr>        <th>one</th>        <th>two</th>        <th>three</th>        <th>four</th>        <th>five</th>      </tr>    </thead>        <tbody id="table2body">  <!--     should append here -->    </tbody>      </table>    <hr>    <span>this how want look:</span>  <table id="table2">      <thead>      <tr>        <th>one</th>        <th>two</th>        <th>three</th>        <th>four</th>        <th>five</th>      </tr>    </thead>        <tbody>      <tr>        <td>row title</td>        <td colspan="4">row content</td>    </tbody>      </table>

a <table> element , subcomponents <tbody>, <tr> require specific syntax. example, <tr> elements authorized children of <tbody>.

therefore cannot define element , insert in <tbody> or <table>. if moved outide of <table> @ parsing. hence display of first example (look code in dev tools).

instead should define customized tag instead in this answer similar question.

or should redefine complete custom table structure <custom-table>, <custom-tbody>... in this other answer.

also, should use closing tag <custom-tr></custom-tr>, , insert css rule in shadow dom if want applied inside it.


Comments

Post a Comment

Popular posts from this blog

What is happening when Matlab is starting a "parallel pool"? -

running parallel cpu processes in matlab starts command parpool() according documentation , function: [creates] special job on pool of workers, , [connects] matlab client parallel pool. this function takes bit of time execute, on order of 30 seconds. in other multi-cpu paradigms openmp, parallel execution seems totally transparent -- i've never noticed behavior analogous matlab (granted i'm not experienced parallel programming). so, happening between time parpool() called , when finishes executing? takes long? parallel computing toolbox enables run matlab code in parallel using several different paradigms (e.g. jobs , tasks, parfor , spmd , parfeval , batch processing), , run either locally (parallelised across cores in local machine) or remotely (parallelised across machines in cluster - either 1 own, or 1 in cloud). in of these cases, code run on matlab workers , copies of matlab without interactive desktop. if you're intending run on remo...
Read more

angular - DownloadURL return null in below code -

when change file updated in firebase storage when try downloadurl show null. filechange(event: any) { const imagefolder: string = this.employee.id; const filelist: filelist = event.target.files; const file: file = filelist[0]; const storageref = firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file); console.log(storageref.snapshot.downloadurl); } the put() asynchronous. if want url after file uploaded have this: firebase.storage().ref().child(`${imagefolder}/profile.jpg`).put(file).then((snapshot) => { storageref = snapshot.downloadurl: console.log(snapshot.downloadurl); });
Read more

php - Cannot override Laravel Spark authentication with own implementation -

during login process of laravel spark need request token of remote api. api stores exact same users , passwords laravel spark application. therefore need username , non hashed password of user during authentication process. i thought overriding authenticated method solution problem. in routes/web.php override post /login endpoint , pointing endpoint own logincontroller: <?php namespace app\http\controllers\auth; use illuminate\support\facades\log; use illuminate\http\request; use laravel\spark\http\controllers\auth\logincontroller sparklogincontroller; class logincontroller extends sparklogincontroller { /** * create new login controller instance. * * @return void */ public function __construct() { parent::__construct(); } /** * handle successful authentication attempt. * * @param request $request * @param \illuminate\contracts\auth\authenticatable $user * @return response */ public fu...
Read more