CODEWITHSUNDEEP
arraysangulartypescript
Sumchans
Sumchans

Reputation: 3774

Typescript Array sorting

How do I sort an array of objects alphabetically in Typescript. I have array in this format now - enter image description here I am looking to sort it alphabetically by the channel field.

Here is what I tried which I got from the web.It didn't show any errors and also it didn't produce the expected result as well.

 this.currentPickSelection = this.currentPickSelection.sort((a, b) => {
      if (a.channel > b.channel) {
        return 1;
      }
      if (a.channel < b.channel) {
        return -1;
      }
      return 0;

Upvotes: 0

Views: 7352

Answers (2)

Saiyaff Farouk
Saiyaff Farouk

Reputation: 5633

You basically have to sort an array of objects.

Change your JSON object as an array of objects.

[
    {
        "pickCode":"",
        "cbsCode": "",
        "channel": "",
        "logo": "",
        "tag": ""
    },
    {
        "pickCode":"",
        "cbsCode": "",
        "channel": "",
        "logo": "",
        "tag": ""
    },
    {
        "pickCode":"",
        "cbsCode": "",
        "channel": "",
        "logo": "",
        "tag": ""
    }
]

Write a reusable function like this. (Same logic you've used. I've added the toLowerCase() part)

private compare(a, b) {
 if (a.channel.toLowerCase() < b.channel.toLowerCase()) {
  return -1;
 }
 if (a.channel.toLowerCase() > b.channel.toLowerCase()) {
  return 1;
 }
 return 0;
}

And then, let's assume that arrayOfObjects variable name is channelDetails,

simply this.channelDetails.sort(this.compare); would do this.

Upvotes: 0

Hassan Imam
Hassan Imam

Reputation: 22534

You have a multidimensional array. Your array#sort method should be

this.currentPickSelection.sort((a, b) => a[0].channel.localeCompare(b[0].channel))

Upvotes: 6

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