Search like number field in MongoDb by NestJs

let aggregateTotal = [];
let aggregateMatch = {};
if (searchServiceDto.hasOwnProperty('code')) {
.assign(aggregateMatch, {
codeStr: new (searchServiceDto.code.toString()),
});

}
aggregateTotal.push(
{
$addFields : {
codeStr: {
$toString: '$code'
}
}
}
)
aggregateTotal.push({
$match: aggregateMatch,
});
aggregateTotal.push(
{
$project : {
codeStr: 0
}
}
)
let data = await this.serviceSoftModel.aggregate(aggregateTotal);

type code in MongoDb is number

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