[英]Add CSS class to dynamic ul li a tag using javascript
我在div中有一個ul li列表,我想基於該列表單擊標簽來添加CSS類。
這是我的ul li的html:
<div class="tabs1">
<ul>
<li class="active"><a href="javascript:;" onclick="change_program()" class="program active" title="Program"></a></li>
<li><a href="javascript:;" onclick="change_sd()" class="sd" title="Discriminative Stimulus"></a></li>
<li><a href="javascript:;" onclick="change_response()" class="response" title="Response"></a></li>
<li><a href="javascript:;" onclick="change_enforces()" class="enforces" title="Reinforcers"></a></li>
<li><a href="javascript:;" onclick="change_sro()" class="sro" title="Short Range Objective"></a></li>
<li><a href="javascript:;" onclick="change_lro()" class="lro" title="Long Range Objective"></a></li>
<li><a href="javascript:;" onclick="change_prompt()" class="prompt" title="Prompt"></a></li>
</ul>
</div>
以下是調用這些標簽的函數:
function change_program(){
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="block";
document.getElementById("trial").style.display="none";
document.getElementById("sd").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("response").style.display="none";
document.getElementById("enforces").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_sd(){
document.getElementById("sd").style.display="block";
document.getElementById("program").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("response").style.display="none";
document.getElementById("enforces").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_response(){
document.getElementById("response").style.display="block";
document.getElementById("sd").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("enforces").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_enforces(){
document.getElementById("enforces").style.display="block";
document.getElementById("response").style.display="none";
document.getElementById("sd").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_sro(){
document.getElementById("sro").style.display="block";
document.getElementById("enforces").style.display="none";
document.getElementById("response").style.display="none";
document.getElementById("sd").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("lro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_lro(){
document.getElementById("lro").style.display="block";
document.getElementById("enforces").style.display="none";
document.getElementById("response").style.display="none";
document.getElementById("sd").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("prompt").style.display="none";
}
function change_prompt(){
document.getElementById("prompt").style.display="block";
document.getElementById("enforces").style.display="none";
document.getElementById("response").style.display="none";
document.getElementById("sd").style.display="none";
document.getElementById("trial").style.display="none";
document.getElementById("program").style.display="none";
document.getElementById("bcs_sub").style.display="none";
document.getElementById("graphs").style.display="none";
document.getElementById("summary").style.display="none";
document.getElementById("sro").style.display="none";
document.getElementById("lro").style.display="none";
}
我只是想執行使用javascript在這些函數中添加類的操作。
所有標簽的CSS類是:
<style>
.tabs1 ul li a.program:active {
width: 129px;
background: url(../images/program_steps_h.png) no-repeat;
}
.tabs1 ul li a.sd:active {
width: 129px;
background: url(../images/program_steps_sd.png) no-repeat;
}
.tabs1 ul li a.response:active {
width: 129px;
background: url(../images/program_steps_response.png) no-repeat;
}
.tabs1 ul li a.enforces:active {
width: 129px;
background: url(../images/program_steps_enforces.png) no-repeat;
}
.tabs1 ul li a.sro:active {
width: 129px;
background: url(../images/program_steps_sro.png) no-repeat;
}
.tabs1 ul li a.lro:active {
width: 129px;
background: url(../images/program_steps_lro.png) no-repeat;
}
.tabs1 ul li a.prompt:active {
width: 129px;
background: url(../images/program_steps_prompt.png) no-repeat;
}
</style>
也許你的意思是這樣的:
$(function () { // on load of page
// on a click on any link in the UL
$("div.tabs1>ul>li>a").on("click", function (e) {
e.preventDefault(); // cancel click
// remove all active from all elements under UL
$(this).closest("ul").find(".active").removeClass("active");
// add active to the clicked
$(this).addClass("active");
// add active to the clicked's parent LI
$(this).parent().addClass("active");
// hide all target divs
$(".toggleDiv").hide();
// show the one with ID= contents of data-target of clicked link
$("#"+$(this).data("target")).show();
}).first().click(); // click the first on load
});
使用
<div class="tabs1">
<ul>
<li><a href="#" data-target="program" class="program" title="Program">Program</a></li>
<li><a href="#" data-target="sd" class="sd" title="Discriminative Stimulus">SD</a></li>
<li><a href="#" data-target="response" class="response" title="Response">Response</a></li>
<li><a href="#" data-target="enforces" class="enforces" title="Reinforcers">Enforces</a></li>
<li><a href="#" data-target="sro" class="sro" title="Short Range Objective">SRO</a></li>
<li><a href="#" data-target="lro" class="lro" title="Long Range Objective">LRO</a></li>
<li><a href="#" data-target="prompt" class="prompt" title="Prompt">PROMPT</a></li>
</ul>
</div>
<div id="sro" class="toggleDiv">SRO....</div>
<div id="sd" class="toggleDiv">SD...</div>
$(function () { $("div.tabs1>ul>li>a").on("click", function (e) { e.preventDefault(); // cancel click $(this).closest("ul").find(".active").removeClass("active"); $(this).addClass("active"); $(this).parent().addClass("active"); $(".toggleDiv").hide(); $("#"+$(this).data("target")).show(); }).first().click(); // click the first on load });
.toggleDiv { display:none } li.active { background-color:red } .active { color:yellow }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> <div class="tabs1"> <ul> <li><a href="#" data-target="program" class="program" title="Program">Program</a></li> <li><a href="#" data-target="sd" class="sd" title="Discriminative Stimulus">SD</a></li> <li><a href="#" data-target="response" class="response" title="Response">Response</a></li> <li><a href="#" data-target="enforces" class="enforces" title="Reinforcers">Enforces</a></li> <li><a href="#" data-target="sro" class="sro" title="Short Range Objective">SRO</a></li> <li><a href="#" data-target="lro" class="lro" title="Long Range Objective">LRO</a></li> <li><a href="#" data-target="prompt" class="prompt" title="Prompt">PROMPT</a></li> </ul> </div> <div id="sro" class="toggleDiv">SRO....</div> <div id="sd" class="toggleDiv">SD...</div>
您不能將偽類添加到元素,只能添加實類。 偽類表示瀏覽器狀態的變化,例如:hover
在元素上時:hover
。
因此,應使用.tabs1 ul li a.prompt.active
而不是.tabs1 ul li a.prompt:active
這樣的選擇器。 然后,您可以使用jQuery:
$(selector).addClass("active");
將類添加到某些元素。
我認為您正在尋找這樣的東西:
<p id = "go-for-it">Hi !</p>
<script type="text/javascript">
document.getElementById("go-for-it").className = "hi-buddy";
</script>
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