javascript - 使用数组创建 Div Dom 元素
问题描述
我在下面有这段代码,Multidimensional Array
我正在使用它array
来动态创建DOM elements
以填充我HTML Tab
现在的问题是我正在尝试使用我的 ['hobbies'] 数组将它附加到tab
.
我使用了一个 foreach 循环来使每个 [ hobbies
] 数组值都有自己的 div 标签。但我不确定如何使用每个 div 将其附加到名称下方。任何建议将不胜感激。
var personArr = [];
var person = {["first-Name"]: "John", ["last-Name"]: "Doe", ["age"]: 21, ["hobbies"]:["football","swimming","dancing"],
["person-desc"]: "<br />Bacon ipsum dolor amet short loin doner tail meatloaf hamburger jerky <br />boudin picanha shankle turducken prosciutto cow kielbasa tenderloin."
};
var person2 = {
["first-Name"]: "Paul",
["last-Name"]: "Logan",
["age"]: 22,
["hobbies"]:["camping","sleeping","eating"],
["person-desc"]: "Bacon ipsum dolor amet short loin doner tail meatloaf hamburger jerky boudin picanha shankle turducken prosciutto cow kielbasa tenderloin. "
};
var person3 = {
["first-Name"]: "Sean",
["last-Name"]: "Kim",
["age"]: 32,
["hobbies"]:["running","jogging","climbing"],
["person-desc"]: "Bacon ipsum dolor amet short loin doner tail meatloaf hamburger jerky boudin picanha shankle turducken prosciutto cow kielbasa tenderloin."
};
var person4 = {
["first-Name"]: "Ken",
["last-Name"]: "Chow",
["age"]: 12,
["hobbies"]:["gyming","movies","tv"],
["person-desc"]: "Bacon ipsum dolor amet short loin doner tail meatloaf hamburger jerky boudin picanha shankle turducken prosciutto cow kielbasa tenderloin."
};
personArr.push(person, person2, person3, person4);
console.log(personArr);
var $parent = $('.line1').eq(0);
personArr.forEach((person, i) => {
var $name = $('<h4/>');
var $desc = $('<p/>');
var $hobbie = $('<div/>');
var hobbieArray = '';
$.each(person['hobbies'], function (index) {
hobbieArray += ('<div class="hobclass ">' + person['hobbies'][index] + '</div>');
});
$name.html(` ${person['first-Name']} ${person['last-Name']}`);
$desc.html(` ${person['person-desc']}`);
$parent.append($name).append($desc).append($hobbie);
});
//<---------------------------------------------- TAB FUNCTION ------------------------------------------------------->
function openCity(evt, cityName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
}
document.getElementById(cityName).style.display = "block";
evt.currentTarget.className += " active";
}
document.getElementById("defaultOpen").click();
body {font-family: Arial;}
/* Style the tab */
.tab {
overflow: hidden;
border: 1px solid #ccc;
background-color: #f1f1f1;
}
/* Style the buttons inside the tab */
.tab button {
background-color: inherit;
float: left;
border: none;
outline: none;
cursor: pointer;
padding: 14px 16px;
transition: 0.3s;
font-size: 17px;
}
/* Change background color of buttons on hover */
.tab button:hover {
background-color: #ddd;
}
/* Create an active/current tablink class */
.tab button.active {
background-color: #ccc;
}
/* Style the tab content */
.tabcontent {
display: none;
padding: 6px 12px;
border: 1px solid #ccc;
border-top: none;
}
.line1{
display:inline-block;
}
.size{
width:50%;
}
a.morelink {
text-decoration:none;
outline: none;
}
.morecontent span {
display: none;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="//code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
</head>
<body>
<div class ="size">
<div class="tab">
<button class="tablinks" onclick="openCity(event, 'People')" id="defaultOpen">People</button>
</div>
<div id="People" class="tabcontent">
<div class="line1">
</div>
</div>
</div>
</body>
</html>
解决方案
您只需要hobbieArray
在元素中插入(这是一个 HTML 字符串,而不是数组)$hobbie
。.html
像在其他地方一样使用。
var hobbieHTML = '';
$.each(person['hobbies'], function (index) {
hobbieHTML += ('<div class="hobclass ">' + person['hobbies'][index] + '</div>');
});
$hobbie.html( hobbieHTML );
使用 JS 编写 HTML 有点笨拙,使用元素通常更容易(就像您已经使用$name
and一样$desc
)
$.each(person['hobbies'], function (index) {
var $h = $('<div/>').addClass('hobclass').text( person['hobbies'][index] );
$hobbie.append( $h );
});
定义对象键时,您永远不需要同时使用[]
和""
。仅""
当密钥具有特殊字符时才需要。如果可以的话,通常最好在没有特殊字符的情况下命名您的键。
var person2 = {
firstName: "Paul",
lastName: "Logan",
age: 22,
hobbies: [ "camping", "sleeping", "eating" ],
description: "Bacon ipsum dolor amet short loin doner tail meatloaf hamburger jerky boudin picanha shankle turducken prosciutto cow kielbasa tenderloin. "
};
现在使用点符号更容易访问对象的属性。您也可以使用本机Array.forEach
而不是 jQuery 的$.each
.
person.hobbies.forEach( function ( hobby ) {
var $h = $('<div/>').addClass('hobclass').text( hobby );
$hobbie.append( $h );
})
$name.html(` ${ person.firstName } ${ person.lastName }`);
$desc.html(` ${ person.description }`);
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