Created
April 16, 2015 16:44
-
-
Save jtarleton/73b1450952a8c581ec82 to your computer and use it in GitHub Desktop.
Sorting an Array Objects in Javascript
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <head> | |
| <title>Javascript Object Sorting Exercise</title> | |
| <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script> | |
| <style type="text/css"> | |
| .yella { | |
| background-color: yellow; | |
| } | |
| .arrow-up { | |
| width: 0; | |
| height: 0; | |
| border-left: 5px solid transparent; | |
| border-right: 5px solid transparent; | |
| border-bottom: 5px solid #000; | |
| } | |
| .arrow-down { | |
| width: 0; | |
| height: 0; | |
| border-left: 5px solid transparent; | |
| border-right: 5px solid transparent; | |
| border-top: 5px solid #000; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Fun with Object Sorting in Javascript</h1> | |
| <span id="output"></span> | |
| </body> | |
| <script type="text/javascript"> | |
| function getCurrentArrow(dir) { | |
| return (dir == 'asc') ? 'arrow-up' : 'arrow-down'; | |
| } | |
| function getAvailableArrow(dir) { | |
| return (dir == 'asc') ? 'arrow-down' : 'arrow-up'; | |
| } | |
| function getAvailableDir(dir) { | |
| return (dir == 'asc') ? 'desc' : 'asc'; | |
| } | |
| function writeTableHeader(json1, fld, srtdir){ | |
| tbl = ''; | |
| tbl += '<tr>'; | |
| for (q in json1.data[0]){ | |
| klass= (q==fld) ? 'yella' : 'normal'; | |
| srtmsg = '<div title="Click to sort ' + getAvailableDir(srtdir) + '" class="headersrt '+ getAvailableArrow(srtdir) +'" style="cursor:pointer" id="' + q + ' ' + getAvailableDir(srtdir) + '">' + '</div>' ; | |
| srtinfo = (q==fld) ? ' ('+ srtdir + ')': ''; | |
| tbl+='<th class="'+ klass +'">'+ q + ' ' + srtmsg + srtinfo + ' </th>'; | |
| } | |
| tbl += '</tr>'; | |
| return tbl; | |
| } | |
| function writeTableBody(json1, fld, srtdir){ | |
| tbl = ''; | |
| var dt = runsort(json1.data, fld, srtdir); | |
| jQuery.each(dt, function(i, obj){ | |
| tbl+= '<tr>'; | |
| for (q in obj){ | |
| foo = eval("obj."+q); | |
| tbl+='<td>'+ foo +'</td>'; | |
| } | |
| tbl += '</tr>'; | |
| }); | |
| return tbl; | |
| } | |
| function listenclick(){ | |
| jQuery('.headersrt').click(function(){ | |
| info = jQuery(this).attr('id'); | |
| infoarr = info.split(' '); | |
| makeTbl(json1, infoarr[0], infoarr[1]); | |
| }); | |
| } | |
| function makeTbl(json1, fld, srtdir){ | |
| jQuery('#output').html(''); | |
| tbl = '<p>Sorting on ' + fld + ' '+srtdir + '</p>'; | |
| tbl += '<table border="1">'; | |
| tbl += writeTableHeader(json1, fld, srtdir); | |
| tbl += writeTableBody(json1, fld, srtdir); | |
| tbl +='</table>'; | |
| jQuery('#output').html(tbl); | |
| listenclick(); | |
| } | |
| function runsort(arr, prop, dir) { | |
| if(dir == undefined) | |
| dir = 'asc'; | |
| arr.sort(function(a, b){ | |
| first = eval("a."+prop); | |
| second = eval("b."+prop); | |
| if(first!=null) | |
| var nameA=first.toLowerCase(); | |
| else | |
| var nameA = ''; | |
| if(second!=null) | |
| var nameB=second.toLowerCase(); | |
| else | |
| var nameB = ''; | |
| switch(dir){ | |
| case 'asc': | |
| default: | |
| if (nameA < nameB) //sort string ASCending | |
| return -1; | |
| if (nameA > nameB) | |
| return 1; | |
| break; | |
| case 'desc': | |
| if (nameA > nameB) //sort string DESCending | |
| return -1; | |
| if (nameA < nameB) | |
| return 1; | |
| break; | |
| } | |
| return 0; //default return value (no sorting) | |
| }); | |
| return arr; | |
| } | |
| sortMe = '{"error": false,"numFound": 21,"data": [{"first": "David","last": "Smith","zip": "00142"},{"first": "Beth","last": "Davidson","zip": "12342"},{"first": "Amy","last": "Roberts","zip": "12342"},{"first": "Danielle","last": "Samuleson","zip": "12342"},'; | |
| sortMe +='{"first": "Franco","last": "Spinoza","zip": "81342"},'; | |
| sortMe +='{"first": "Erica","last": "Jones","zip": "92942"},'; | |
| sortMe +='{"first": "Amy","last": "Williams","zip": "55342"},'; | |
| sortMe +='{"first": "Teresa","last": "Estancia","zip": "62342"},'; | |
| sortMe +='{"first": "Amy","last": "LaSalle","zip": "77342"},'; | |
| sortMe +='{"first": "John","last": "Roberts","zip": "92342"}'; | |
| sortMe += '],'; | |
| sortMe +='"start": 0,'; | |
| sortMe +='"page": "1",'; | |
| sortMe +='"limit": "50",'; | |
| sortMe +='"term": "Foo"'; | |
| sortMe +='}'; | |
| jQuery(document).ready(function(){ | |
| fld = 'first'; | |
| srtdir = 'asc'; | |
| json1 = jQuery.parseJSON(sortMe); | |
| makeTbl(json1, fld, srtdir); | |
| listenclick(); | |
| }); | |
| </script> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment