Getting the last element of a split string array

Question

I need to get the last element of a split array with multiple separators  The separators are commas and space  If there are no separators it should return the original string   If the string is  how are you doing  today   it should return  today    If the input were  hello  the output should be  hello    How can I do this in JavaScript

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var title    fdfdsg dsgdfh dgdh dsgdh tyu hjuk yjuk uyk hjg fhjg hjj tytutdfsf sdgsdg dsfsdgvf dfgfdhdn dfgilkj n  jhk jsu wheiu sjldsf dfdsf hfdkdjf dfhdfkd hsfd  dsfk dfjdf  yier djsgyi kds   var shortText     trim title  substring 1000  150  split      slice 0  -1  join            More  gt  gt

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And if you don t want to construct an array      var str    how are you doing  today    var res   str replace                         3      The breakdown in english is     anything  any separator once  anything that isn t a separator 0 or more times     The replace just says replace the entire string with the stuff after the last separator   So you can see how this can be applied generally  Note the original string is not modified

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You can also consider to reverse your array and take the first element  That way you don t have to know about the length  but it brings no real benefits and the disadvantage that the reverse operation might take longer with big arrays   array1 split      reverse   0    It s easy though  but also modifies the original array in question  That might or might not be a problem   Reference  https   developer mozilla org en-US docs Web JavaScript Reference Global Objects Array reverse  Probably you might want to use this though   array1 split      pop

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You can access the array index directly   var csv    zero one two three   csv split      0     result  zero csv split      3     result  three

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var item    one two three   var lastItem   item split      pop    console log lastItem      three

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array split      slice -1  0    The best one ever and my favorite

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var str    hello how are you today    var pieces   str split    s         At this point  pieces is an array and pieces length contains the size of the array so to get the last element of the array  you check pieces pieces length-1   If there are no commas or spaces it will simply output the string as it was given   alert pieces pieces length-1       alerts  today

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There s a one-liner for everything      var output   input split          pop

[javascript] Getting the last element of a split string array

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