javascript - ESLint Rule on React Component: Method Render expected no return value -


i can't life of me understand why want rule let alone means. want return here in render

export default class searchtabs extends component {   render() {     const { panels, selectedtab } = this.props;     if (!panels || panels.length === 0) return;      let filter = null;      const tabs = panels.member.map((panel, idx) => {       const { id: panelid, headline } = panel;       const url = getheaderlogo(panel, 50);       const item = url ?         <img src={url} alt={headline} /> : headline;       const classname = classnames([         searchresultstheme.tabitem,         (idx === selectedtab) ? searchresultstheme.active : null,       ]);        filter = (idx === selectedtab) ? this.renderfilters(panel) : filter;        return (         <tabitem           classname={`${classname} search-tab`}           headline={headline}           idx={idx}           content={item}           onclick={() => {             this.tabchanged(idx, headline);           }}           panelid={panelid}         />       );     });      return (       <div classname={searchresultstheme.filters}>         <ul classname={`${searchresultstheme.tabs} ft-search-tabs`}>{tabs}</ul>         <div classname={searchresultstheme.dropdown}>{filter}</div>       </div>     );   } }

i believe problem line

if (!panels || panels.length === 0) return;

it's complaining because code path not return anything. try changing to

if (!panels || panels.length === 0) return null;

Comments

Post a Comment

Popular posts from this blog

ubuntu - PHP script to find files of certain extensions in a directory, returns populated array when run in browser, but empty array when run from terminal -

i running os ububtu 16.04. ultimate goal able run php script cron job every minute. here php script located @ /var/www/html/tests/test/index.php : <?php $directorypath = $_server['document_root']."/tests/test/data/"; echo "directorypath: $directorypath<br><br>";//check $imagefilepathsarray = glob($directorypath . "*.{png,gif}", glob_brace); echo "<br><br>imagefilepathsarray: "; print_r($imagefilepathsarray);//check ?> when open php script in browser visiting url my-ip-address/tests/test/index.php , get: directorypath: /var/www/html/tests/test/data/ imagefilepathsarray:array( [0] => /var/www/html/tests/test/data/pic.png [1] => /var/www/html/tests/test/data/pic.gif ) before writing cron job in crontab file, need check if can run anywhere using terminal . opened ubuntu terminal @ /home/ location, , executed in terminal: sudo php /var/www/html/tests/test/index.php i got following out...
Read more

php - How can i create a user dashboard -

today have questions you, want create user dashboard site, include (obviously), users data, example -email -username -and others stuff how can information, , print them in html page? if can, how can these information via php sessions? shuld use session? example, if user login, , start new session ( session_start() ), how can data print in dashboard? should use php "project"? in advice, have day , thank time!
Read more

javascript - How to detect toggling of the fullscreen-toolbar in jQuery Mobile? -

i have jquery mobile page fixed full-screen toolbar, data-tap-toggle enabled. straight under toolbar have positioned banner should slide upwards when toolbar hiding , slide downward when toolbar showing. jquery mobile toggles toolbar applying , removing ui-fixed-hidden class - sadly, can't find in documentation of toolbar widget toggle , hide or show event that. how can detect when toolbar toggled, reposition banner? .banner { position: fixed; background-color: darkseagreen; top: 46px; min-height: 48px; width: 100%; text-align: center; line-height: 48px; } <!doctype html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"> <link rel="stylesheet" href="https://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.css"> <script src="https://code.jquery.com/jquery-1....
Read more