HTML
<button type="button" class="btn" name="showAllBtn" onClick="showAllSteps()">Show all</button>
JS
function showAllSteps()
{
//code
}
function nextStep()
{
//code
}
如果我点击显示全部按钮,它应该在这两个功能之间切换。任何人都可以帮助我吗?
答案 0 :(得分:1)
您可以使用dataset
来存储点击状态,
document.querySelector("button[name='showAllBtn']").addEventListener("click",function(){
var state = this.dataset.clicked;
state = state || true;
((state) ? showAllSteps : nextStep)();
this.dataset.clicked = !state;
},false);
修改:True
/ false
似乎会导致上述代码出现问题。因此,我在上面进行了一些调整并在下面给出了它。
document.querySelector("button[name='showAllBtn']").addEventListener("click",function(){
var state = this.dataset.clicked;
state = typeof state == "undefined" ? "Y" : state;
((state == "Y") ? showAllSteps : nextStep)();
this.dataset.clicked = (state == "Y") ? "N" : "Y";
},false);
答案 1 :(得分:1)
function showAllSteps() {
alert('showAllSteps');
expectedFunc = function() { nextStep(); };
}
function nextStep() {
alert('nextStep');
expectedFunc = function() { showAllSteps(); };
}
function toggleFunction() {
expectedFunc();
}
var expectedFunc = function() { showAllSteps(); };
<button type="button" class="btn" name="showAllBtn" onclick="toggleFunction()">Show all</button>
这里的JsFiddle(针对IE更新):https://jsfiddle.net/t0g6ayhq/2/