Finding The Closest Span With A Specific Class Inside A Div

I want to find the closest span with class error_span. How can I do that using jQuery?

input.

To solve your issue traverse to a common parent of both the input and span and use find() from there. Try this:

$("#reimburse_price").blur(function() {
    checkNumInput('#' + this.id);
});

functioncheckNumInput(id) {
    var $input = $(id);
    if ($input.val() == "") {
        $input.get(0).setCustomValidity('Please fill out this field');
        $input.closest('.form-group').find('.error_span').text("Please fill out this field").toggleClass("hidden text-danger");
    }
}

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