credi.js

const data = [
  [
    null,
    [
      "434",
      3214,
      "Site CrediHome"
    ]
  ],
  [
    "won",
    [
      "10",
      3214,
      "Site CrediHome"
    ]
  ],
  [
    "lost",
    [
      "7",
      3214,
      "Site CrediHome"
    ],
    [
      "7",
      3214,
      "Site CrediHome"
    ],
    [
      "7",
      3214,
      "Site CrediHome"
    ]
  ],
  [
    "no_contact",
    [
      "6",
      3214,
      "Site CrediHome"
    ]
  ],
  [
    "deleted",
    [
      "4",
      3214,
      "Site CrediHome"
    ]
  ]
]

data

const test = data.map(bla => {
  return { type: bla[0], leads: parseInt(bla[1][0]) }
})

test.filter(t => ['won', 'deleted', 'lost'].includes(t.type))

console.log(test)