javascript - CSS style not reverting using Javacript -


i trying set css property , forth using javascript depending on value @ time. class name 'menu' set hidden on page load. when call set visible successful. however, when call again change doesn't set hidden. seen set visible.

let menu = document.queryselector('.menu'); if (menu.style.visibility = 'hidden') {   menu.style.visibility = 'visible';   console.log('visible'); // shows this. } else {   menu.style.visibility = 'hidden';   console.log('hidden'); // doesn't here when .menu visible. }

i confused why can first not second. have tried having specific else: else if (menu.style.visibility = 'visible') tried using setattribute it's same outcome.

i need able switch , forth.

kindly use below condition

if (menu.style.visibility == 'hidden') //change ==

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