const script = `
onmessage = (e) => {
    if(e.data.message=='makeOptions'){
        const data = JSON.parse(e.data.data)
        if(!data[0]) return
        const out = []
        for(let i=0; i< data[0].length; i++){
            out.push([])
        }
        for(let i=0; i<data.length; i++){
            for(let j=0; j<data[0].length; j++){
                const item = data[i][j]
                if(typeof item == typeof "string"){
                    if(!out[j].includes(item)){
                        out[j].push(item)
                    }
                }
            }
        }
        postMessage(out)
    }
}
`

const f = new File([script], 'worker.js')
const url = URL.createObjectURL(f)
export default url