Tips for preventing the addition of a comma at the end of a foreach loop item

Is there a way to prevent adding a comma after the last element, like in the case of ABC1 where a comma should not be added? https://i.sstatic.net/12lNu.png You can find the code sample here >>>Sample

  methods:{
    test(){
      this.Aarray.forEach((value)=>{
        this.Codes += value.Code +',';
      });
      console.log(this.Codes);
    }
  },
  data(){
    return{
      Codes:'',
      Aarray:[
        {Code:'ABC12345'},
        {Code:'ABC1234'},
        {Code:'ABC123'},
        {Code:'ABC12'},
        {Code:'ABC1'},
      ]
    }
  }

Answer №1

One simple solution is to remove the extra comma at the end.

functions: {
    check() {
        this.Barray.forEach((item) => {
            this.Codes += item.Code +',';
        });
        console.log(this.Codes.slice(0, -1));
    }
},

Answer №2

To create a more advanced separator, you can utilize a separator variable like this:

methods: {
    customSeparator() {
        let separator = '';
        this.codes = '';
        
        this.myArray.forEach((item) => {
            this.codes += separator + item.code;
            separator = ' | ';
        });
        
        console.log(this.codes);
    }
},

This approach allows for a complex separator to be used in the code.

Tip: To ensure accuracy, remember to reset the variable this.codes within the customSeparator() function before building it up again.

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