How do I count two items in a pie chart?

1. Problem scenarios

Form entry data

Assume that you need to use pie charts to count the number of fruit types, but in the process of input, you can enter "apple" into "Little Apple 」. The following pie chart effect is obtained:

Effect picture

Question:How do I put little Apple and Apple in the same category for statistics?

2. Solution

View the following steps to learn about the specific settings:

Solution

Code snippet:

function afterFetch(data, extraInfo) {
  let num = 0;
  for(let i = 0;i<data.length;i++){
    if (data[i].field_ktwly8no === '苹果' || data[i].field_ktwly8no === '小苹果') {
      num = num + data[i].field_ktwly8nq;
      data.splice(i--,1)
    }
    console.log(data)
  }
  data.push({ field_ktwly8no: '苹果', field_ktwly8nq:num})

  return data;
}

From one example to another:
Suppose you not only classify "apple" and "Little Apple" as "apple", but also need to classify "pineapple" and "Pineapple" as "Pineapple". What should you do? Then you only need to add another judgment.

3. Effect display

Effect display

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