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我希望遍历数组中的对象,以便每个使用 html()
的学校都有他们的名称、学区和英语、数学、科学和社会研究的百分比反射(reflect)在schools.js
问题:现在,我只得到数组中的最后一所学校
是否可以在没有data-id
的情况下执行此操作?附加到每所学校还是实际上有必要确定哪所学校是哪所学校?
// Generate numbers from 1 through 20
for(var i = 0; i < schools.length; i++) {
var schoolID = i + 1
console.log(schoolID);
// Schools
var schoolName = $(".school__name").html(schools[schoolID].name); // Name
var schoolDistrict = $(".school__district").html(schools[schoolID].district); // District
// var schoolCrest = // $(".school__image").attr("src", schools[schoolID].crest) // Crest
// Percentage
var percentEnglish = $(".school__district").html(schools[schoolID].english); // English
var percentMath = $(".school__district").html(schools[schoolID].math); // Math
var percentScience = $(".school__district").html(schools[schoolID].science); // Science
var percentSocial = $(".school__district").html(schools[schoolID].social); // Social Science
}
var schools = [
{
"name": "school1",
"district": "district1",
"crest": "",
"location": "",
"percentEnglish": "1%",
"percentMath": "21%",
"percentScience": "41%",
"percentSocial": "61%"
},
{
"name": "school2",
"district": "district2",
"crest": "",
"location": "",
"percentEnglish": "2%",
"percentMath": "22%",
"percentScience": "42%",
"percentSocial": "62%"
}];
<div class="widget high-school">
<div class="widget__info">
<p class="widget__category">High school</p>
<p class="widget__title">Missouri Assessment Program standouts</p>
</div>
<div class="widget__buttons">
<p class="widget__rank">Rank by:</p>
<button class="btn btn-english is-selected">English</button>
<button class="btn btn-math">Math</button>
<button class="btn btn-science">Science</button>
<button class="btn btn-social">Social Studies</button>
</div>
<div class="wrapper">
<div class="schools">
<div class="school" data-id="1">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="2">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="3">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="4">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="5">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="6">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="7">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="8">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="9">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="10">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="11">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="12">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="13">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="14">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="15">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="16">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="17">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="18">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="19">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="20">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
</div><!-- schools -->
</div>
最佳答案
问题是通过使用类选择器,选择了很多元素。当您使用 .html()
时,它不知道您要定位哪个元素。
您可以通过使用 .eq()
通过索引定位特定元素轻松解决此问题 - 与您在 json 数组中使用的索引相同。
var schools = [
{
"name": "school1",
"district": "district1",
"crest": "",
"location": "",
"percentEnglish": "1%",
"percentMath": "21%",
"percentScience": "41%",
"percentSocial": "61%"
},
{
"name": "school2",
"district": "district2",
"crest": "",
"location": "",
"percentEnglish": "2%",
"percentMath": "22%",
"percentScience": "42%",
"percentSocial": "62%"
}];
for(var i = 0; i < schools.length; i++) {
// Schools
$(".school__name").eq(i).html(schools[i].name); // Name
$(".school__district").eq(i).html(schools[i].district); // District
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="widget high-school">
<div class="widget__info">
<p class="widget__category">High school</p>
<p class="widget__title">Missouri Assessment Program standouts</p>
</div>
<div class="widget__buttons">
<p class="widget__rank">Rank by:</p>
<button class="btn btn-english is-selected">English</button>
<button class="btn btn-math">Math</button>
<button class="btn btn-science">Science</button>
<button class="btn btn-social">Social Studies</button>
</div>
<div class="wrapper">
<div class="schools">
<div class="school" data-id="1">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div> <!-- school -->
<div class="school" data-id="2">
<img src="http://placehold.it/45x45" class="school__image">
<div class="school__details">
<div class="school__name">tk-name</div>
<div class="school__district">tk-district</div>
</div>
<div class="school__percentage">-%</div>
</div>
</div><!-- schools -->
</div>
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