javascript - 无法替换responseText中的反斜杠？

Question

我读了很多关于用 javascript 替换反斜杠的问题，并尝试了它们，但它们对我不起作用。响应文本包含反斜杠，我需要删除它们，但没有任何效果？这是发出请求的 JS 函数:

  requestKittens: function() {
    var req = new XMLHttpRequest();

    req.onreadystatechange = function (event) {
    var xhr = event.target;


    if (xhr.readyState === 4 && xhr.status === 200) {
    var str = xhr.responseText;
    str.replace(/\\/g, '');
     document.getElementsByTagName('body')[0].innerHTML = xhr.responseText

    }
};

    req.open('GET', this.searchOnFlickr_, true);
        req.setRequestHeader('accessKey','fdsfkslfjslfjlgfdgdfg');


    req.send();
  },

这是服务器的响应

{"topics":[{"topicLabel":"Computer concepts","topicThesaurusName":"topics","topicUrl":"http://dictionary.cambridge.org/topics/technology/computer-concepts/","topicId":"computer-concepts","topicParentId":"technology"}],"dictionaryCode":"british","entryLabel":"address noun (COMPUTERS)","entryContent":"address</h1> noun</span> [C</span></span>]</span></span> (COMPUTERS)</span>https://dictionary.cambridge.org/external/images/uk_pron.png?version=2013-08-07-1929\"/></a>https://dictionary.cambridge.org/media/british/uk_pron/u/uka/ukada/ukadapt021.mp3\"/>https://dictionary.cambridge.org/media/british/uk_pron_ogg/u/uka/ukada/ukadapt021.ogg\"/>Your browser does not support HTML5 audio.</audio>https://dictionary.cambridge.org/external/images/us_pron.png?version=2013-08-07-1929\"/></a>https://dictionary.cambridge.org/media/british/us_pron/e/eus/eus70/eus70074.mp3\"/>https://dictionary.cambridge.org/media/british/us_pron_ogg/e/eus/eus70/eus70074.ogg\"/>Your browser does not support HTML5 audio.</audio> /əˈdres</span>/</span>  /ˈæd.res</span>/</span> </span></header>A1</span> </span>a series of letters and symbols that tell you where to find something on the internet or show where an email is sent to: </span></span>What's your email address?</span></span>Do you have their Web address?</span></span></section> \u203a</span> specialized</span></span></span> the place where a piece of information is stored in a computer's memory</span></span></section>(Definition of address noun (COMPUTERS) from the https://dictionary.cambridge.org/dictionary/british/\" title=\"Cambridge Advanced Learner's Dictionary & Thesaurus\n\">Cambridge Advanced Learner's Dictionary & Thesaurus\n</a> © Cambridge University Press)</small></footer></article>","entryUrl":"http://dictionary.cambridge.org/dictionary/british/address_2","format":"html","entryId":"address_2"}

什么可能导致这个问题？

Answer 1

尝试:

str = str.replace(/\\/g, '');

还有:

document.getElementsByTagName('body')[0].innerHTML = str;