Why does the introduction of js, say that there is no such method?

< link rel= "stylesheet" href= "${pageContext.request.contextPath} / css/admin/plugin/overhang.min.css" / >

<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="/js/jquery.min.1.8.2.js"></script>
<script src="${pageContext.request.contextPath}/js/jquery-ui.js" type="text/javascript"></script>
<script type="text/javascript" src="${pageContext.request.contextPath}/js/admin/plugin/overhang.min.js"  />

<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>


 <script>
 $(document).ready(function(){
        /**/
        $(".nav li").click(function() {
            $(".active").removeClass("active");
            $(this).addClass("active");
            $(".collapse.in").collapse("hide");  /*bootstrap.in.in*/
        });   
 
     });
</script>

is the problem of js conflict? how to solve

Javascript jquery

Mar.18,2021

bootstrap3 requires more than 1.9.1 jquery

collapse is not a jquery method, and then your bootstrap is loaded by cdn. I wonder if your bootstrap load failed

dom hasn't been loaded yet? When using jquery, you have to wait for loading to complete


$(".collapse.in")

 should be: 
$(".collapse .in")


										
												Previous: Could not build url for endpoint 'search' with values [' q'].
												                		Next: Secondary encapsulation of axios, can request to the interface, but print res.data as undefined in .then
                							
					
						
					
															
						
														
								Ask a question about the jquery window object
								
 I look at a html ui project with items such as: 
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								When the content does not appear, there is a process first?
								
  
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								After js variables and strings are concatenated, how can they still be variables?
								
 under the guidance of others, modified the problem, before sent the wrong question and did not express clearly, the code is as follows. The left side of the colon can be written like this [ result$ {I} AV ]. The number is obtained by the index, but the ...
								
									
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										Feb.28,2021
									
								
							
														
								Does switch have two conditions at the same time?
								
var url =   x.php  ;
var get =   add_x  ;
switch(url) {
  case    x.php  :
    $("-sharpmenu").show();
  break;
}
 above is only to judge what url is and what to do  but can I add get judgment? Do the same thing!  is the same as $( "- sharpmenu...
								
									
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								For doubts about the event, please look at the code.
								
var $buttom=[];
        
  
function addBtn() {
    var $dom = $(  <button>    + iPP +   < button>  );
    $dom.on(  click  ,function(){
        console.log($(this).html());
    });
    $buttom.push($dom);
    $.each($buttom,function(i,n){
  ...
								
									
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										Mar.01,2021
									
								
							
														
								How to solve the problem that cannot be displayed after jquery generates DOM append? (this question contains 2 questions)
								
 recently I have been practicing making a pop-up box, 
 = [part 1] =  put the code first: 
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
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								How does php value to js?
								
 I introduced menu.js  " on the web site.
<script type=  text javascript   src="js menu.js">< script>
$abc =   123  ;

<script type=  text javascript   src="js menu.js">< script>
 but suppose I have a value on ...
								
									
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 jq  s ajax append after using the TouchSlide plug-in causes the class defined by TouchSlide to have no style 
 now it  s like this 

width0pxbdclass
ajax
 
...
								
									
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								How to use js to simulate text as a password type?
								
 since my website does not use https, to access the login page of my website under firefox, firefox will clearly indicate that the link to this site is not secure and the login information entered will be stolen. 
 I would like to ask, how can I change t...
								
									
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								After the foreach number is changed, how can I import the value if I choose to be editable in the same account?
								
<?foreach ($region_get_all->regions as $key):?>
       
<?endforeach;?>
 suppose I get multiple numbers via foreach  what I want to do is that when the user selects the  "edit " data , I will show the div  that there will be data , and wil...
								
									
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								How do you write mouseenter, leave?
								
$(".help_cover").mouseenter(function(event) {
  $(".layout_help_cover").fadeIn();
});
$(".help_cover").mouseleave(function(event) {
  $(".layout_help_cover").fadeOut();
});
 how can I write this code? I think this ...
								
									
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										Mar.03,2021
									
								
							
														
								How jquery converts multiple identical forms into json arrays.
								
 for example, there is a requirement that a person can add multiple internships, and I can click a button on the page to add form, for multiple internships. The content of this form is the same, and so is class. The json format of each form is  {Id:  "1 ...
								
									
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								Loading encountered a problem, how to end the loading, can jump out of the function do not run the code?
								
  
 my code structure is like this  I think after on load, besides fadeOut, the js function on  also stops and stop running.  how can this be written? 
 Update 
$(document).ready(function () {
    $(".pageloading").show();

    var curIndex=0;
...
								
									
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										Mar.04,2021
									
								
							
														
								Use the button to send out the list, but what about the click event?
								
 list of submit-sharpadd_form when ctrl+s or command+s  is pressed 
$(window).bind(  keydown  , function(event) {
  if (event.ctrlKey || event.metaKey) {
    switch (String.fromCharCode(event.which).toLowerCase()) {
    case   s  :
      event.preventDef...
								
									
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								There are two navigation switches on the page, how to avoid gaps in the switch?
								
 

 
 here is my method, which I think is too bulky and doesn  t work well: 
$(function(){
                $(  body  ).scrollspy({target:   -sharpproductDetailsNav  });
                $(window).scroll(function() { 
                      
               ...
								
									
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								How to limit the display of only 10 news headlines after loading the list of news headlines in json
								
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<!DOCTYPE html>
<htm...
								
									
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								Js implements single selection and multiple selection, and one of the options can expand more content.
								
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								Change the css Fortress platoon to X, press X and then change it back to Fort Platoon?
								
 
 
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						MySQL Query :  SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5 
 MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3dabf-2c3b7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") 
 MySQL Errno : 1021 
 Message :  Disk full (/tmp/#sql-temptable-64f5-1b3dabf-2c3b7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device") 
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