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Grouped and Sorted Array Using a Value Converter
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| <template> | |
| <require from="./grouped-sort"></require> | |
| <table> | |
| <template repeat.for="[group, items] of myArray | groupedSort"> | |
| <tr> | |
| <td> | |
| ${group} | |
| </td> | |
| </tr> | |
| <tr repeat.for="item of items"> | |
| <td> | |
| ${item.name} | |
| </td> | |
| </tr> | |
| </template> | |
| </table> | |
| </template> |
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| export class App { | |
| myArray = [ | |
| { | |
| name: 'R2-D2', | |
| group: 'robots' | |
| }, | |
| { | |
| name: 'terminator', | |
| group: 'robots' | |
| }, | |
| { | |
| name: 'wall-e', | |
| group: 'robots' | |
| }, | |
| { | |
| name: 'robocop', | |
| group: 'robots' | |
| }, | |
| { | |
| name: 'C-3PO', | |
| group: 'robots' | |
| }, | |
| { | |
| name: 'dog', | |
| group: 'animals' | |
| }, | |
| { | |
| name: 'shark', | |
| group: 'animals' | |
| }, | |
| { | |
| name: 'cat', | |
| group: 'animals' | |
| }, | |
| { | |
| name: 'monkey', | |
| group: 'animals' | |
| } | |
| ] | |
| } |
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| export class GroupedSortValueConverter { | |
| toView(value) { | |
| let sortedArray = value.splice(0).sort((a, b) => { | |
| const left = a.name, | |
| right = b.name; | |
| return caseInsensitiveStringComparer(left, right); | |
| }); | |
| const groups = new Map(); | |
| for (let item of sortedArray) { | |
| let group = groups.get(item.group); | |
| if (group === undefined) { | |
| groups.set(item.group, [item]); | |
| } else { | |
| group.push(item); | |
| } | |
| } | |
| let sortedGroups = new Map(Array.from(groups.entries()).sort((a, b) => { | |
| const left = a[0]; | |
| const right = b[0]; | |
| return caseInsensitiveStringComparer(left, right); | |
| })); | |
| return sortedGroups; | |
| } | |
| } | |
| function caseInsensitiveStringComparer(left, right) { | |
| const lowerLeft = left.toLowerCase(), | |
| lowerRight = right.toLowerCase(); | |
| if (lowerLeft < lowerRight) { //sort string ascending | |
| return -1; | |
| } else if (lowerLeft > lowerRight) { | |
| return 1; | |
| } else { | |
| return 0; | |
| } | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| </head> | |
| <body aurelia-app> | |
| <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script> | |
| <script> | |
| require(['aurelia-bootstrapper']); | |
| </script> | |
| </body> | |
| </html> |
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