1639 questions
I am currently a beginner studying JavaScript.The code is debugged below, and letres_=await this.callApi()If the callApi is undefined, you will get in trouble.There is no description of callApi in the...
<ul> <li>Chocolate</li> <li>Vanilla</li> <li>Strawberry</li> <li> Bananas</li></ul>When <li> is clicked above, I would like to get wha...
I'm creating a page, typing text in a text box, and clicking anywhere in the page will erase the contents of the text box, so I'd like to find out what's going on when the cursor moves away from the t...
There was a code that passed the global object defined in the function as an argument. What is the possible reason?·Why is it not window or this?· Am I correct in understanding that global objects nee...
We use ChartJS to display bar graphs.I defined callbacks in the tooltips property to edit the contents of the tooltips, but The tooltip does not change the contents.Do you know the cause?▼ Execution E...
(Two answers) 4 years agoThere is an error in client.js, but I don't know where to fix it.It seems to be an error with the symbol <, but I don't use it anywhere, so it's refreshing.If you are f...
Sample Code const path = 'index'; // index may be summary/productconstarray=['index']; // index may be summary/productconst result=array.find(page=>{ if(page===path||`${page}/`===path){ return page...
I got b for the pull-down (select tag), so I want it to be b=SELECT, but for some reason it might be b=BODY.When I checked the activeElement specifications on the page below, I found the following:Doc...
function A(){};A.prototype.a=function(){ // any other treatment // Calling A.prototype._b This._b();};A.prototype._b = function(){};A.prototype._b is used only in A.prototype.a and assumes modules tha...
As shown below, I try to focus on the center with slideTo when I click on the swiper, but it breaks when I go to the beginning or end.It seems that the elements are cloned when a mouse drag or touchEv...
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