The problem with JavaScript Object Field escape characters

10-matematika.js

let objek = {
    "subjek": "10mat",
    "10mat1": {
        "id": "10mat1",
        "noPertanyaan": 1,
        "pertanyaan": "",
        "jawaban": {
            "a": "$ b - a < x - y < a - b  $",
            "b": "$ a - b < x - y < b - a  $",
            "c": "$ \frac {1}{2}\\ (b-a) < x - y < \frac {1}{2}\\ (a-b) $",
            "d": "$ \frac {1}{2}\\ (a-b) < x - y < \frac {1}{2}\\ (b-a) $"
        },
        "kunci": "c"
    },
    "10mat2": {
        "id": "10mat2",
        "noPertanyaan": 2,
        "pertanyaan": "",
        "jawaban": {
            "a": "$ 2 \\leq x \\leq 3 $",
            "b": "$ -1 \leq x \leq 2 $",
            "c": "$ x \leq{2}\ \text{atau}\ x \geq{3}\ $",
            "d": "$ x \leq{-1}\ \text{atau}\ x \geq{2}\ $"
        },
        "kunci": "e"
    },
    "10mat3": {
        "id": "10mat3",
        "noPertanyaan": 3,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    },
    "10mat4": {
        "id": "10mat4",
        "noPertanyaan": 4,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    },
    "10mat5": {
        "id": "10mat5",
        "noPertanyaan": 5,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "b"
    },
    "10mat6": {
        "id": "10mat6",
        "noPertanyaan": 6,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "d"
    },
    "10mat7": {
        "id": "10mat7",
        "noPertanyaan": 7,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "e"
    },
    "10mat8": {
        "id": "10mat8",
        "noPertanyaan": 8,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "b"
    },
    "10mat9": {
        "id": "10mat9",
        "noPertanyaan": 9,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    },
    "10mat10": {
        "id": "10mat10",
        "noPertanyaan": 10,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "e"
    },
    "10mat11": {
        "id": "10mat11",
        "noPertanyaan": 11,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "3"
    },
    "10mat12": {
        "id": "10mat12",
        "noPertanyaan": 12,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "d"
    },
    "10mat13": {
        "id": "10mat13",
        "noPertanyaan": 13,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    },
    "10mat14": {
        "id": "10mat14",
        "noPertanyaan": 14,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "a"
    },
    "10mat15": {
        "id": "10mat15",
        "noPertanyaan": 15,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "e"
    },
    "10mat16": {
        "id": "10mat16",
        "noPertanyaan": 16,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "d"
    },
    "10mat17": {
        "id": "10mat17",
        "noPertanyaan": 17,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    },
    "10mat18": {
        "id": "10mat18",
        "noPertanyaan": 18,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "b"
    },
    "10mat19": {
        "id": "10mat19",
        "noPertanyaan": 19,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "d"
    },
    "10mat20": {
        "id": "10mat20",
        "noPertanyaan": 20,
        "pertanyaan": "",
        "jawaban": {
            "a": "",
            "b": "",
            "c": "",
            "d": ""
        },
        "kunci": "c"
    }
}

module.exports = objek

test.js

const file = require('./10-matematika.js')

const modul = JSON.parse(JSON.stringify(file))
// let str = (s => s.raw), require('./soal/10-matematika.js')

// delete modul.subjek;

// // modul.forEach(element => {
// //     console.log(element)
// // })

// for (const soal in modul) {
//     if (modul.hasOwnProperty(soal) && modul[soal].id !== undefined) {
//     //   kumpulanKunci.push({
//     //     id: modul[soal].id,
//     //     kunci: modul[soal].kunci
//     //   })
//     //   delete modul[soal].kunci
//     // modul[soal].jawaban.forEach(element => {
//     //     console.log(element)
//     // });
//     Object.entries(modul[soal].jawaban).forEach(([key, val]) => {
//         // console.log(modul[soal].jawaban[key], modul[soal].jawaban[val])
//         console.log(key, val)
//         // modul[soal].jawaban[key] = `${JSON.parse(JSON.stringify(val))}`
//         modul[soal].jawaban[key] = String.raw`${val}`
//     })
//     }
//   }

  console.log(modul)