toggle

问题 I'm very new to Objective-C so sorry if this is extremely obvious to many of you, but I'm trying to work out how the following piece of code is actually working: - (IBAction)chooseColour:(UIButton *)sender { sender.selected = !sender.isSelected; } Now it obviously toggles between the selected and unselected states of the button sending the action, but what is the code 'sender.selected = !sender.isSelected' actually saying? Is it just 'set the sender selected property to the opposite (i.e. !

问题 Hi folks not sure the best way to do this - i.e. where to put the if 's .. I have a div that loads a page and has a setInterval() function. On the loaded page there is 1 button, What I want to acheive is when button #1 (loaded page) is clicked to stop the setInterval() and append a new div (position absolute) until button#2 (on the apended div) is clicked then to restart it. .. comprende? Here is my "base" code This is the action from the first button $('.replybutton').live('click',function()

问题 I've tried searching the site and I found a bunch of responses that have to deal with toggling divs on this site. I've also read the documentation on the jquery site. However all of my programming experience has been with mostly back-end java services and I am not a front-end web dev at all so when I see all of the explanations that are given to the answers, I really don't understand them. I've gotten things to work on one individual div but I want things to work on a page that will have

问题 I'm making a list of items with v-for loop. I have some API data from server. items: [ { foo: 'something', number: 1 }, { foo: 'anything', number: 2 } ] and my template is: <div v-for(item,index) in items @click=toggleActive> {{ item.foo }} {{ item.number }} </div> JS: methods: { toggleActive() { // } } How can i toggle active class with :class={active : something} ? P.S I don't have boolean value in items 回答1: You can try to implement something like: <div v-for="(item, index) in items" v

问题 I have a button and I want my variable click to be set to true when the button is clicked, and false when the button is clicked again (I want toggle functionality). When click == true , I want it to output clicked into the console and when click == false I want it to output not clicked . var click = false Here's my toggle function: $('.button').toggle( function(){ click = true; $('.bmw').show(); }, function() { click = false; $('.bmw').hide(); }); And what I want it to do: if(click = true) {

问题 I've been beating my head against my desk for the last two days over this one. I'm making an app that displays info from a db, the title/link, thumbnail, and time saved wrapped in an unordered list, like so: http://blog.madebycraig.com/images/full.jpg What I'm trying to do is have a minimize button on the element, toggling the thumbnail and time saved on and off: http://blog.madebycraig.com/images/minimized.jpg I can accomplish this, but it's all or nothing. I click one minimize button, and

问题 In this stackoverflow answer $('#user_button').toggle(function () { $(".hello").addClass("active"); }, function () { $(".hello").removeClass("active"); }); The jQuery .toggle callback function is used to add and remove classes to an element. Now according to the jQuery .toggle documentation, .toggle is originally used to switch between visibility states of the selected element. I've made a jsfiddle demo: http://jsfiddle.net/taheri/nYdng/ In my example here it seems to only alternate between

问题 I have two sliding panels, panel1 is sliding down, while panel2 is sliding from left. I want to close panel1 when opening panel2. I know there's many similar question already been answered but I couldn't figure it out how do I apply those in my site. $(document).ready(function(){ $(".slide-btn1").click(function(){ $("#panel1").toggle("slow"); $(this).toggleClass("active"); return false; }); $(".slide-btn2").click(function(){ $("#panel2").slideToggle("slow"); $(this).toggleClass("active");

问题 I have checked out similar answers to this question and have set up my code similar to this response here, but still cannot get it to work: bootstrap 3 navbar collapse button not working I even tried using the exact code for the default navbar on the Bootstrap 3 site, but it still doesn't work. I've included these two links in the head section and my paths are correct: http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js

问题 I have checked out similar answers to this question and have set up my code similar to this response here, but still cannot get it to work: bootstrap 3 navbar collapse button not working I even tried using the exact code for the default navbar on the Bootstrap 3 site, but it still doesn't work. I've included these two links in the head section and my paths are correct: http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js