JavaScript vs Ajax [关闭]

Question

Closed. This question needs details or clarity. It is not currently accepting answers.

                </div>
            </div>
        </div>
                <hr class="my12 outline-none baw0 bb bc-powder-2">
            <div class="grid fw-nowrap fc-black-600">
                    <div class="grid--cell mr8">
                        <svg aria-hidden="true" class="svg-icon iconLightbulb" width="18" height="18" viewbox="0 0 18 18"><path d="M9.5.5a.5.5 0 0 0-1 0v.25a.5.5 0 0 0 1 0V.5zm5.6 2.1a.5.5 0 0 0-.7-.7l-.25.25a.5.5 0 0 0 .7.7l.25-.25zM1 7.5c0-.28.22-.5.5-.5H2a.5.5 0 0 1 0 1h-.5a.5.5 0 0 1-.5-.5zm14.5 0c0-.28.22-.5.5-.5h.5a.5.5 0 0 1 0 1H16a.5.5 0 0 1-.5-.5zM2.9 1.9c.2-.2.5-.2.7 0l.25.25a.5.5 0 1 1-.7.7L2.9 2.6a.5.5 0 0 1 0-.7z" fill-opacity=".4"></path><path opacity=".4" d="M7 16h4v1a1 1 0 0 1-1 1H8a1 1 0 0 1-1-1v-1z" fill="#3F3F3F"></path><path d="M15 8a6 6 0 0 1-3.5 5.46V14a1 1 0 0 1-1 1h-3a1 1 0 0 1-1-1v-.54A6 6 0 1 1 15 8zm-4.15-3.85a.5.5 0 0 0-.7.7l2 2a.5.5 0 0 0 .7-.7l-2-2z" fill="#FFC166"></path></svg>
                    </div>
                <div class="grid--cell lh-md">
                    <p class="mb0">
                        <b>Want to improve this question?</b> Add details and clarify the problem by <a href="/posts/28586022/edit">editing this post</a>.
                    </p>
                    <p class="mb0 mt6">Closed <span title="2015-02-18 16:55:28Z" class="relativetime">5 years ago</span>.</p>
                </div>
            </div>
    </aside>

I am new in the web-dev. I read both JS and Ajax but was confused, which one is better in terms of simplicity and performance?

We have lot of JS frameworks but do we have same in the Ajax?

</div>

Answer 1

JavaScript is a programming language.

Ajax is a buzzword that has come to mean the act of using JavaScript to make an HTTP request from a browser without leaving the page. (Originally the term was specific to requesting XML, occasionally people use it to discuss using other languages (like Flash) to fetch data from a page.)

They aren't alternatives to each other. Comparing them is like comparing potatoes to eating.