js

downloadDataAsFile.js

const downloadAsCSVFile = function(csv, fname) {
    let csvfile = new Blob([csv], {type: 'text/csv'})
    let downlink = document.createElement('a')

    downlink.download = fname
    downlink.href = window.URL.createObjectURL(csvfile)
    downlink.style.display = 'none'

    document.body.appendChild(downlink)
    downlink.click()
    document.body.removeChild(downlink)
}


downloadAsCSVFile(anyDataString, 'filename.csv')