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Astro Repo

Using Front-End Javacript with Astro

1 min read

Error Checking for querySelector

if(btns.length===0) return;

const btn = document.querySelector('btn');

if(btn){
    //stuff
}

//or

if(!btn) return;

Error Checking for querySelectorAll

const btns = document.querySelectorAll('.btns');

if(btns.length>0){
    //stuff
}