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$(myContextNode).siblings("span.myClass")
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Use jQuery .siblings() to select the matching sibling.
$(this).siblings('.bidbutton');
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// Retrieve all sibling elements of an element with id "myElement"
var siblings = $('#myElement').siblings();
// Iterate over the retrieved sibling elements
siblings.each(function() {
// Do something with each sibling element
console.log($(this).text());
});