javascript获取当前标签的文字

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html:
<a id="btn" onclick="addTabs(this)" class="easyui-linkbutton" data-options="" style="width: 100%">按钮1</a>

javascript:
<script>
    function addTabs(obj) {
        var text = $(obj).text();
        console.log(text);
    }
</script>