alt

问题 So the error I get is: Uncaught (in promise) Error: Invariant Violation: Dispatch.dispatch(...): Cannot dispatch in the middle of a dispatch.(…) I've read through countless of posts regarding this error but I can't seem to figure out why I get it. I get the error at pageload, from thereon it works fine. When I remove the loading action: loading: StudentsActions.studentsLoading it all works fine. You can find all the code on the github repo Thanks in advance ! 回答1: You are getting this error

问题 When creating HTML5 animations, is there a technique that can be used to "synchronize" the alternate text so that screen-readers reads the given element that appears the moment it appears (or triggered by an event / timeline-driven)? Ideally, something that I could invoke with GSAP (using it as the animation library for my projects). Or could such a thing just make the screen-reader speak and pause repeatedly too often, ending up sounding more frustrating than actually enhancing the

问题 We have alternate text, alt attribute, for an img tag in HTML, which will show up when the image doesn't come up. I tried using the tag with iframe too. <iframe src="www.abc.com" alt="Web site is not avaialable"> But the alternate text doesn't come up when src="" is given. Just wanted to know if I can achieve alternate text in any other way, if the src is not given ? 回答1: Since my first attempt misunderstood your question, let's try this instead: <script> $(function () { $("iframe").not(":has

问题 Is it correct to use alt tag for an anchor link, something like <a href="#" class="test" alt="Something" src="sfasfs" ></a> 回答1: Such things are best answered by looking at the official specification: go to the specification: https://www.w3.org/TR/html5/ search for " a element": https://www.w3.org/TR/html5/text-level-semantics.html#the-a-element check "Content attributes", which lists all allowed attributes for the a element: Global attributes href target download rel hreflang type check the

问题 Is it ok to put html codes inside alt tags? I have a slider that uses alt tags for description. In order style the description, I have to put html codes. My problem is I dont know if it will harm SEO or any other things to consider.. 回答1: HTML markup is not valid for the contents of the alt attribute . If you need a fancy dialog ox you can easilt accomlish this with JavaScript and maye even plain old CSS. That way your code is valid and you don't run into any potential SEO issues. 回答2: Yes,

问题 I have a react app where I'm using alt for the flux architecture side of things. I have a situation where I have two stores which are fed by ajax calls in their corresponding actions. Having read the alt getting started page on data dependencies it mentions dependencies between stores using waitFor - http://alt.js.org/guide/wait-for/ but I don't see a way to use this kind of approach if one of my store actions is dependent on another store action (both of which are async). If I was doing this

问题 I recently asked a question to get the alt tag of an image displayed in the center of the image when you hover over it, and was thankfully provided with this following code to do so. <script type="text/javascript"> $(document).ready(function () { $('#illustration-content ul li img').hover( function(){ $(this).css('opacity','.2'); var a = $(this).attr('alt'); $(this).parent().append('<div class="title">' + a + '</div>'); }, function(){ $(this).css('opacity','1'); $(this).next().remove('.title'

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . When it comes to linked images and SEO, should the title attribute be used on the <img> tag, the parent <a> tag or both? Common practice seems to be to add the title attribute to the <a> tag. But is this best for SEO? Would there be any harm in adding it to both tags? If not, is there harm in the title text

问题 I am working on a winform app for a touch screen monitor. The app consists of a web browser and a on screen keyboard. I have most everything I need, but the problem I am facing is that there are two input languages, English and Korean. Anyone familiar with using two languages can tell you that the right alt key is used to go back and forth between languages. I need to simulate this keystroke, but I can't find anything for it. I have found ways to simulate left/right shift keys, and left/right

问题 I'm creating an image gallery that shows the alt text as captions for each individual image. Right now I have something that uses the mouseenter/mouseleave function for this desired result. JS $(function () { $(".thumb").mouseenter(function () { var $t = $(this); var $d = $("<div>"); $d.addClass("desc").text($t.attr("alt")).css({ width: $t.width(), height: $t.height() - 20, top: $t.position().top }); $t.after($d).fadeTo("fast", 0.3); $d.mouseleave(function () { $(this).fadeOut("fast", 0,