JSFiddle - React, Tailwind, and code Playground

by ThiefMaster

JavaScript

var callingFn = function() {
    var a = 99;
    // remember, the eval can't sit here, must be outside
    expect(this, function() {
        alert(a);
    });
};
var expect = function(context, callable) {
    callable.call(context);
};

new callingFn();