id property returns null or undefined

2018-06-29 20:16:34

This question already has an answer here:

How can I get the ID of an element using jQuery? 17 answers

尝试这个：

var columnID = $(this).closest(".col-md-4.column").attr('id');

There is no id property. Use .attr('id') .

Try

$(this).closest(".col-md-4.column").attr('id')

The attributes have to be accessed with the .attr method

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