Save data from a JavaScript session in your browser console

console-save.js

// Example:
// var data = Array.from(document.querySelectorAll('a[href*="youtu"]')).map(a => a.href)
// console.save(data.join("\n"), "urls.txt")

console.save = function (data, filename) {
    if (!data) {
        console.error('Console.save: No data')
        return
    }

    if (!filename) {
        console.error('Console.save: No filename')
        return
    }

    if (typeof data === "object") {
        data = JSON.stringify(data, undefined, 4)
    }

    var blob = new Blob([data], {
            type: 'text/json'
        }),
        e = document.createEvent('MouseEvents'),
        a = document.createElement('a')

    a.download = filename
    a.href = window.URL.createObjectURL(blob)
    a.dataset.downloadurl = ['text/json', a.download, a.href].join(':')
    e.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
    a.dispatchEvent(e)
}