Trying to use ES6 arrayObj.sort(a,b) => a.property.localeCompare(b.property) syntax but getting error:
TypeError: a.property.localeCompare is not a function.
I'm thinking localeCompare is not in scope but do not understand how to bind it to the scope of sort, perhaps because the data is stored in a proxy? I'm also working within VueJS 3 but don't think that is relevant to this issue.
myData =
Proxy {0: {…}, 1: {…}, 2: {…}, 3: {…}, 4: {…}}
[[Handler]]: Object
[[Target]]: Array(5)
0: {itemIndex: 1, itemFmt: 2, itemFmtName: 'Call To Order', guid: 'd66af412-00a0-4c49-b8b5-abaefb79fed0', maxCt: 1, …}
1: {itemIndex: 2, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '9f7b9d34-3fcb-42c7-866e-a56f71a8aa4f', maxCt: 0, …}
2: {itemIndex: 4, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '406bea5e-1cb0-4d90-96e9-9b80b64ff8ba', maxCt: 0, …}
3: {itemIndex: 5, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: 'ad9aacda-5100-4eef-9ead-c61e1ec0c285', maxCt: 0, …}
4: {itemIndex: 7, itemFmt: 3, itemFmtName: 'Roll Call', guid: '1715f7a3-066d-4787-8233-a36df2a729a9', maxCt: 1, …}
myData.sort((a, b) => a.itemIndex.localeCompare(b.itemIndex))
CodePudding user response：
localeCompare is a method of String, but a.itemIndex is a Number, so the method would not be available on that property.
To sort by itemIndex, use subtraction on the two Numbers:
const myData = [
{itemIndex: 1, itemFmt: 2, itemFmtName: 'Call To Order', guid: 'd66af412-00a0-4c49-b8b5-abaefb79fed0', maxCt: 1 },
{itemIndex: 2, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '9f7b9d34-3fcb-42c7-866e-a56f71a8aa4f', maxCt: 0},
{itemIndex: 4, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '406bea5e-1cb0-4d90-96e9-9b80b64ff8ba', maxCt: 0},
{itemIndex: 5, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: 'ad9aacda-5100-4eef-9ead-c61e1ec0c285', maxCt: 0},
{itemIndex: 7, itemFmt: 3, itemFmtName: 'Roll Call', guid: '1715f7a3-066d-4787-8233-a36df2a729a9', maxCt: 1},
]
// sort by itemIndex in ascending order
myData.sort((a,b) => a.itemIndex - b.itemIndex)
console.log(myData)To sort by itemFmtName, use localeCompare on the two Strings:
const myData = [
{itemIndex: 1, itemFmt: 2, itemFmtName: 'Call To Order', guid: 'd66af412-00a0-4c49-b8b5-abaefb79fed0', maxCt: 1 },
{itemIndex: 2, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '9f7b9d34-3fcb-42c7-866e-a56f71a8aa4f', maxCt: 0},
{itemIndex: 4, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: '406bea5e-1cb0-4d90-96e9-9b80b64ff8ba', maxCt: 0},
{itemIndex: 5, itemFmt: 6, itemFmtName: 'Title/Discussion/Motion', guid: 'ad9aacda-5100-4eef-9ead-c61e1ec0c285', maxCt: 0},
{itemIndex: 7, itemFmt: 3, itemFmtName: 'Roll Call', guid: '1715f7a3-066d-4787-8233-a36df2a729a9', maxCt: 1},
]
// sort by itemFmtName in alphabetical order
myData.sort((a,b) => a.itemFmtName.localeCompare(b.itemFmtName))
console.log(myData)