JSFiddle - React, Tailwind, and code Playground

by Yuriy Bablyukh

JavaScript

const discounts = [
      {
        "isMemo": true,
        "variantId": 229075,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      },
      {
        "isMemo": true,
        "variantId": 231302,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      },
      {
        "isMemo": true,
        "variantId": 231302,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      },
      {
        "isMemo": true,
        "variantId": 231300,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      },
      {
        "isMemo": true,
        "variantId": 231301,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      },
      {
        "isMemo": true,
        "variantId": 231302,
        "value": "-85.54420787%",
        "buyerCompanyId": "f76b4106-c94a-45f8-a7ab-a3e9736bbe6b"
      }
    ]

   
    
    const result = discounts.filter((el)=>el.isMemo && el.variantId==231302)
    
    console.log(discounts.map(a => a.variantId)[0]);
    console.log(result);