按关键词搜索

Question

我是一名自学成才的程序员，目前正在从事工作清单网站项目。 我有一个带有搜索功能的工作清单页面。 现在，用户可以按职位搜索，并且我想添加按关键字搜索的选项。

的HTML

每个作业都有6个属性：作业标题，作业位置，作业类型，作业行业和作业关键字。 作业关键字是一个列表，因为作业可以具有不同数量的关键字。

<div class="job-listing">
    <div class="container">
            <div class="job-number">
                <h2>We Found <span id="number-jobs-total" class="text-secondary">214</span> Offers For <span>You</span> </h2>
            </div>
            <ul class="job-board">
                <li class="job job-1">
                    <div class="job-title">
                        <h2>Process Engineer</h2>
                    </div>
                    <div class="job-location">
                        <p>Location: Naypyitaw</p>
                    </div>
                    <div class="job-type">
                        <p>Type: Full-Time</p>
                    </div>
                    <div class="job-date">
                        <p>Published on 07/19/2019</p>
                    </div>
                    <div class="job-industry">
                        <p>Engineering</p>
                    </div>
                    <ul class="job-keywords">
                        <li>Engineering</li>
                        <li>Science</li>
                    </ul>
                </li>
                <li class="job job-2">
                        <div class="job-title">
                            <h2>Chief Financial Officier</h2>
                        </div>
                        <div class="job-location">
                            <p>Location: Naypyitaw</p>
                        </div>
                        <div class="job-type">
                                <p>Type: Full-Time</p>
                        </div>
                        <div class="job-date">
                                <p>Published on 07/18/2019</p>
                        </div>
                    </li>
                    <li class="job job-3">
                            <div class="job-title">
                                <h2>Assistant CEO</h2>
                            </div>
                            <div class="job-location">
                                <p>Location: Naypyitaw</p>
                            </div>
                            <div class="job-type">
                                    <p>Type: Part-Time</p>
                            </div>
                            <div class="job-date">
                                    <p>Published on 07/18/2019</p>
                            </div>
                        </li>
                        <li class="job job-4">
                                <div class="job-title">
                                    <h2>Front-End Developer</h2>
                                </div>
                                <div class="job-location">
                                    <p>Location: Naypyitaw</p>
                                </div>
                                <div class="job-type">
                                        <p>Type: Part-Time</p>
                                </div>
                                <div class="job-date">
                                        <p>Published on 07/18/2019</p>
                                </div>
                            </li>          
            </ul>
            <nav class="pagination-container">
                <ul class="pagination">
                    <li><a href="javascript:void(0)">Previous</a></li>
                    <li><a href="javascript:void(0)">Next</a></li>

                </ul>
            </nav>
    </div>
</div>

JS按标题搜索：

const search= document.querySelector(".skills");
const jobs = Array.from(document.querySelector(".job-board").children);

const filterJobs = term => {
    jobs.filter(job =>{
        const title = job.querySelector(".job-title").textContent.toLowerCase();

        if(title.includes(term.toLowerCase()) || totalKeywords.includes(term.toLowerCase()) ){
            job.style.display = "list-item";
        } else{
            job.style.display = "none";
        }
    });
};

search.addEventListener("keyup", e =>{
    filterJobs(e.currentTarget.value.trim());
});

JS：我已经尝试过了，但我认为我还没有走很远，但是仍然无法正常工作

const search= document.querySelector(".skills");
const jobs = Array.from(document.querySelector(".job-board").children);

const filterJobs = term => {
    jobs.filter(job =>{
        const title = job.querySelector(".job-title").textContent.toLowerCase();
        const keyword = job.querySelectorAll(".job-keywords li");
        totalKeywords = [];
        for(var i = 0 ; i < keyword.length ; i++){
            totalKeywords.push(keyword[i].textContent);
        }
        console.log(totalKeywords);

        if(title.includes(term.toLowerCase()) || totalKeywords.includes(term.toLowerCase()) ){
            job.style.display = "list-item";
        } else{
            job.style.display = "none";
        }
    });
};

search.addEventListener("keyup", e =>{
    filterJobs(e.currentTarget.value.trim());
});

Answer 1

我认为您的代码的问题是关键字不是字符串而是字符串数组，因此您需要在关键字数组中进行搜索，即

 let inKeywords = totalKeywords.some(keyword => keyword.toLowerCase().includes(term.toLowerCase()));
 if(title.includes(term.toLowerCase()) || inKeywords ){
        job.style.display = "list-item";
    } else{
        job.style.display = "none";
    }

Answer 2

我建议您不要使用includes而是使用indexOf 。 您可以在这里找到更多信息

const search = document.querySelector('.skills');
const jobs = Array.from(document.querySelector('.job-board').children);

const filterJobs = term => {
  jobs.filter(job => {
    const title = job.querySelector('.job-title').textContent.toLowerCase();
    const keyword = job.querySelectorAll('.job-keywords li');
    const totalKeywords = [];
    for (var i = 0; i < keyword.length; i++) {
      totalKeywords.push(keyword[i].textContent);
    }
    console.log(totalKeywords);

    if (title.includes(term.toLowerCase()) || totalKeywords.indexOf(term.toLowerCase()) > -1) {
      job.style.display = 'list-item';
    } else {
      job.style.display = 'none';
    }
  });
};

search.addEventListener('keyup', e => {
  filterJobs(e.currentTarget.value.trim());
});

Answer 3

这是此类前端过滤的一个好技巧。 我不知道这是否是您想要的东西，因为这并不是OP的要求，但这会在您的所有字段（标题，位置，类型，日期，行业，关键字）中进行搜索：

  const search= document.querySelector(".skills"); const jobs = Array.from(document.querySelector(".job-board").children); const filterJobs = term => { jobs.filter(job =>{ jobText = job.textContent || job.innerText || ""; // strip html tags from the job element and keeps only text jobText = jobText.toLowerCase(); if(jobText.indexOf(term.toLowerCase()) > -1){ job.style.display = "list-item"; } else{ job.style.display = "none"; } }); }; search.addEventListener("keyup", e =>{ filterJobs(e.currentTarget.value.trim()); }); 

 <input type="text" class="skills" placeholder="search"> <div class="job-listing"> <div class="container"> <div class="job-number"> <h2>We Found <span id="number-jobs-total" class="text-secondary">214</span> Offers For <span>You</span> </h2> </div> <ul class="job-board"> <li class="job job-1"> <div class="job-title"> <h2>Process Engineer</h2> </div> <div class="job-location"> <p>Location: Naypyitaw</p> </div> <div class="job-type"> <p>Type: Full-Time</p> </div> <div class="job-date"> <p>Published on 07/19/2019</p> </div> <div class="job-industry"> <p>Engineering</p> </div> <ul class="job-keywords"> <li>Engineering</li> <li>Science</li> </ul> </li> <li class="job job-2"> <div class="job-title"> <h2>Chief Financial Officier</h2> </div> <div class="job-location"> <p>Location: Naypyitaw</p> </div> <div class="job-type"> <p>Type: Full-Time</p> </div> <div class="job-date"> <p>Published on 07/18/2019</p> </div> </li> <li class="job job-3"> <div class="job-title"> <h2>Assistant CEO</h2> </div> <div class="job-location"> <p>Location: Naypyitaw</p> </div> <div class="job-type"> <p>Type: Part-Time</p> </div> <div class="job-date"> <p>Published on 07/18/2019</p> </div> </li> <li class="job job-4"> <div class="job-title"> <h2>Front-End Developer</h2> </div> <div class="job-location"> <p>Location: Naypyitaw</p> </div> <div class="job-type"> <p>Type: Part-Time</p> </div> <div class="job-date"> <p>Published on 07/18/2019</p> </div> </li> </ul> <nav class="pagination-container"> <ul class="pagination"> <li><a href="javascript:void(0)">Previous</a></li> <li><a href="javascript:void(0)">Next</a></li> </ul> </nav> </div> </div>