Video narration
Button dabavta page fari load karya vagar theme kevi rite badlay? Phone ma Dark/Light Mode badalta je tarat dekhay chhe, e j ahi thay chhe. Pehla files jodo: CSS file ne HTML na head ma link tag thi jodo. Shuruaat ma JavaScript file ne body bandh thay e pela script tag thi jodvi saheli rit chhe; aa ekmatra rit nathi. Tamara HTML ma button ane CSS ma banne theme na dekhav ni styles taiyar rakho. Have kram juo. JavaScript ma querySelector() etle page mathi joitu element pasand karvu - ahi, theme nu button. Pachhi addEventListener('click') etle button par click thay tyare sambhali ne pratisad aapvo. Pratisad ma DOM, etle page ni jivant rachna, parni class badlo. Aa class sathe jodayela CSS niyamo nakki kare chhe ke page kevu dekhay. Dark/Light Mode ma button click thata class toggle thay chhe, ane aakhi theme no dekhav tarat badlay chhe. Etle jawab sidho chhe: JavaScript button pasand kare, click sambhale ane DOM ni class badle - page fari load karya vagar.