<div class="imgpd">
123
456
789
...
<div> check whether there is a tag in imgpd. If not, add a
<div class="imgpd">
123
456
789
...
<div> check whether there is a tag in imgpd. If not, add a
first add id
<div class="imgpd" id="imgpd">
123
456
789
...
<div> then get the length of img
document.getElementById('imgpd').getElementByTagName('img').lengthif the length is greater than 0, it means there is a picture, otherwise there is no picture
$('.imgpd').append(function(){
if (!$(this).children().is('img')) {
return '<img>';
}
});as a question, I now have 4 input,4 input, all of which can only enter digits and decimal places from the beginning of the input, and can only enter 4 decimal places after the decimal point. If the input format is incorrect, for example, if I write an s ...
requirements: js dynamically calculates the header width and fixes the header. problem: the width of the th of thead obtained by using jquery width () is different between the two browsers chrome: firefox: ...
how do I get the parameter values after the current domain name says hello? www.baidu.com? Keywordid= {keywordid} & keyword= {keyword} & userid= {userid} & planid= {planid} get all the values in curly braces to pass by. Thank you! ...
now the interface returns http: 60.10.25.240 api commo., which is a link that you can download as soon as you visit it. You can download it with window.open, and you can t preview it with iframe. By the way, how can you open this online ? Visit and d...
for (var i = 0; i < pcities.length; iPP) { pcities[i] {name: "", id: 438} str2 += <li onclick="selectcity( + pcities[i].id+ , +pcities[i].name + );"><i class="datadd" >...
Why do I report the wrong reason for asking for advice after using the datatables search function? var table = $( "- sharpexample "). DataTable ({) "paging":true, "pagingType":"full_numbers", "lengthMenu&...
<div id="List" style="height: 200px;overflow-y: scroll"> <ul id="chat-list" class="m-chat-list p-chat-list"> <li class="u-msg item-me session-chat"> <div idcli...
two adjacent (or very close) div,div1 binding mouseout events execute to make div2 disappear when triggered. Div2 bind mouseover events and let div2 display when triggered. When the mouse is removed from the div1 and immediately moved to the div2,div2, ...