Slack invite all script

slackInviteAll.js

// source: https://webapps.stackexchange.com/a/104172

//////////////////////////////
// AFTER.JS Module
//////////////////////////////

var After = function () {
    this._totalTime = 0;
};

// It's prototype
var protoAfter = {
    // After (time) seconds, run a handler
    after: function (time, handler) {
        this._totalTime += time;

        setTimeout(function () {
            handler();
        }, this._totalTime * 1000);

        return this;
    }
};

$.extend(After.prototype, protoAfter);

//\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ End of After section

var first = "a",
    last = "z";

var after = new After();
after.charIndex = first.charCodeAt(0);

for (var i = first.charCodeAt(0); i <= last.charCodeAt(0); i++) {

    after
        .after(0.3, function () {
            $('#channel_actions_toggle').click();
        })

        .after(0.3, function () {
            $('#channel_invite_item').click();
        })

        .after(0.3, function () {
            $("#channel_invite_filter").focus();
            $("#channel_invite_filter").val(String.fromCharCode(after.charIndex)); // type in character
            $("#channel_invite_filter").trigger("input");
            after.charIndex++;
        })

        .after(0.5, function () {
            $(".add_icon").click();
        })

        .after(0.5, function () {
            $(".invite_go").click();
        })

        .after(0.5, function () {
            $("#fs_modal_close_btn").click();
        })
}