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JavaScript
Toggle a CSS class on click
classList.toggle adds or removes a class.
Example
html
<style>.on { background: #04aa6d; color: white; }</style> <button id="b" style="padding:8px 16px">Toggle</button> <script> var b = document.getElementById("b"); b.onclick = function () { b.classList.toggle("on"); }; </script>
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Debounce a function
Loop over an object
Remove duplicates from an array
Shuffle an array
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