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<select class="browser-default custom-select">2
<option selected>Open this select menu</option>3
<option value="1">One</option>4
<option value="2">Two</option>5
<option value="3">Three</option>6
</select>1
1
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$('.custom-select').on('focus', () => {2
console.log('works fine');3
}); Console errors: 0