javascript - I'm `keyup` listening to elements of a class, but I want to get an attribute from the field that is "keyup'ed" -

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in rails app listening on bunch of input fields class regex-field. listening coffeescript code. every time typing 1 of input fields, resetregex method triggered. can see below want value of regexfield.attr "regex". seems same value comes out regardless of field i'm typing into. idea i'm doing wrong?

  $ ->     createsubtable(data, email_type_id)     resetregex()      $(document).ajaxsuccess (event, request, settings) ->       resetregex()    resetregex = ->      regexfield = $(".regex-field")     regexfield.off "keyup"     regexfield.keyup (event) ->       email_type = regexfield.attr "email-type-id"        console.log regexfield                 # => [input#order-id-regex.regex-field, input#name-regex.regex-field, input#mail-address-regex.regex-field, prevobject: jquery.fn.jquery.init[1], context: document, selector: ".regex-field", jquery: "1.9.1", constructor: function…]       console.log regexfield.attr "regex"    # => order_id_regex        $.ajax         type: "get"         datatype: "json"         data:           value: regexfield[0].value           database_field: regexfield.attr "regex"         url: "/api/email_type/"+email_type+"/save_regex"          success: (data, status, xhr) ->          error: (xhr, textstatus, errorthrown) ->     createsubtable = (data, email_type_id) ->      jobscontainer = $("#jobs")      jobstable2 = $("<table />").addclass("table")     jobscontainer.append(jobstable2)      jobsthead2 = $("<thead />")     jobsheadtr2 = $("<tr />")      jobsth2 = $("<th />").text("email body")     jobsheadtr2.append(jobsth2)      jobsthead2.append(jobsheadtr2)     jobstable2.append(jobsthead2)      jobstbody2 = $("<tbody />")      linenumber = 0      data[0].extra.test_return.body.map (line) ->          jobsbodytrloop = $("<tr />")         jobstdloop4 = $("<td />")          if data[0].extra.chosen_fields.order_id_line linenumber             typeinput1 = $("<input />").addclass("regex-field").attr("email-type-id", email_type_id).attr("id", "order-id-regex").attr("regex", "order_id_regex")             jobstdloop4.append(typeinput1)         else if data[0].extra.chosen_fields.mail_address_line linenumber             typeinput1 = $("<input />").addclass("regex-field").attr("email-type-id", email_type_id).attr("id", "mail-address-regex").attr("regex", "mail_address_regex")             jobstdloop4.append(typeinput1)         else if data[0].extra.chosen_fields.name_line linenumber             typeinput1 = $("<input />").addclass("regex-field").attr("email-type-id", email_type_id).attr("id", "name-regex").attr("regex", "name_regex")             jobstdloop4.append(typeinput1)          jobsbodytrloop.append(jobstdloop4)          jobstbody2.append(jobsbodytrloop)          linenumber++      jobstable2.append(jobstbody2)

you need use $(this) reference element triggered event.

regexfield.keyup (event) ->     email_type = $(this).attr "email-type-id"     console.log $(this)  # => should output field triggered event                      console.log $(this).attr "regex"    # => attr "regex" of field

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