比较 JSON 数组和 JSON 对象并找出差异

Question

I've one JSON array and JSON object (Which is string) and I wanted to compare and find different field from both.

I've tried below possibilities and get o/p as:

JSON Response is as:

 -------rule_before RowDataPacket { id: 75, input: 'day_of_week', input_data: '0,1', condition: 'in', status: 'active', extra_fields: '' } -------filter_before RowDataPacket { id: 74, when: 'match', output: 'assign_department', output_data: '3,1', output_data_json: '', status: 'active' } -------rule_after { input: 'page_title', input_data: 'Home', extra_fields: '', condition: 'match', status: 'active' } -------filter_after { when: 'match', output: 'assign_agent', output_data: '1', output_data_json: '', status: 'active' }

 let rule_before = rule_data; let filter_before = filter_data; let rule_after = JSON.parse(request_data.rules); let filter_after = JSON.parse(request_data.filters); rule_before = rule_before[0]; filter_before = filter_before[0]; rule_after = rule_after[0]; filter_after = filter_after[0]; console.log("\\n-------rule_before\\n", rule_before); console.log("\\n-------filter_before\\n", filter_before); console.log("\\n-------rule_after\\n", rule_after); console.log("\\n-------filter_after\\n", filter_after);

I want the difference like

for rule: input: 'day_of_week' => input_data: 'Home' for filter: when: 'match' => when: 'match'

Answer 1

I'm not really sure what you are trying do to but if you want to get all matches of two Objects try the simple function below.

function diff(obj1, obj2) {
      // Check if the Parameters are actually Objects
      if (!(typeof(obj1) === "object" || typeof(obj2) === "object"))
        return false

      // Create arrays out of the Objects
      const arr1 = Object.entries(obj1)
      const arr2 = Object.entries(obj2)
      // Instantiate an array with the matches
      let result = []

      arr1.forEach(el1 => {
        arr2.forEach(el2 => {
          // Check if it matches
          if (el1[0] === el2[0] && el1[1] === el2[1]) {
            // Add the match to the result
            result.push(el1[1])
          }
        })
      })

      // Return the matches
      return result
    }

PS: If you have nested Objects this function doesn't work.