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javascriptarrayssortingpdfacrobat

Sort arrays, variables or objects in Javascript

Im new to javascript but I have already made some scripts that really make a difference in my workflow. However I am now embarking on a project that forces me to sort data in a way I dont know howto do in Javascript. I will try to explain what I need to do as if my data was in excel but it isnt, I have only been able to put the data in 4 different arrays:

 pagenumber[1,2,3,4,5] //only numbers
 zipcode[77889,99887,33667,11122,44559] // only numbers
 streetname[Hillroad, Hillroad, Baghdad Street, Hongway, Chinatown] //only letters
 roadnumber[55,27,1,13,16] //only numbers

I would like to sort them like this, first by the zipcode, then by the roadname, then by the even roadnumbers descending, then by the odd roadnumbers ascending. According to this new sorting I want to generate a new pagenumber but I want it to somehow relate to the (old) variable "pagenumber" so I can locate the old page and extract it to a new document with new pagenumbers. I am not asking you guys to write all the code for me but I need a little bit of advice to know firstly if it is possible to do which I think it is, secondly if it is right of me to put the data in four different arrays, thirdly if ther is any (ofcourse) smarter way to save the data so they relate to eachother more closely. Give me your thoughts. Also tips of where and what I should read is appreciated. Thank you all for the answers. However I want to point out that I write my code in Acrobat DC not for the web.

Solution

  • I suppose the items in your arrays are tied. So you should use [{},{},{},{},{}] instead of 4 arrays. var items = [{pagenumber:1,zipcode:77889,streetname:Hillroad,roadnumber:55},{...},{...},{...},{...}] Then sort each key-value property one-by-one, like below:

    var x= [ {a:2,b:2,c:3}, {a:1,b:1,c:1}, {a:1,b:2,c:3}, {a:2,b:2,c:2} ];

x.sort(function(item1, item2){ 
    var sort_a = item1.a-item2.a;
    if (sort_a) return sort_a;
    var sort_b = item1.b-item2.b;
    if (sort_b) return sort_b;
    var sort_c = item1.c-item2.c;
    if (sort_c) return sort_c;
})

    Or simplify it to be

    x.sort(function(item1, item2){ 
    return (item1.a-item2.a) || (item1.b-item2.b) || (item1.c-item2.c);
})