在javascript中“切换状态”-variable？
在javascript中“切换状态”-variable？
提问于 2018-06-23 06:22:58
我试图用布尔值设置一个变量(currentState)，但在条件变量中似乎无法识别该变量。我遗漏了什么？
function toggle(customID) { // Function set on button, 'customID' is the ID
// of element to toggle with button. Ex:
// <button onclick="(toggle('menu')">Button</button>
var theToggledElement = document.getElementById(customID);
var currentState = false; // false = hidden. true = visible.
if (currentState === false) {
currentState = true;
theToggledElement.style.left = '0px';
console.log('State set to "visible" and left to "0px"');
}
else if (currentState === true) {
currentState = false;
theToggledElement.style.left = 'calc(-100% + (0.5cm + 1.461544602cm + .5cm))';
console.log('State set to "hidden" and left to "calc(-100% + (0.5cm + 1.461544602cm + .5cm))"')
}
}
回答 1
Stack Overflow用户
发布于 2018-06-23 06:48:00
@Barmar谢谢！将"currentState“变量移出，如下所示：
var currentState = false; // false = hidden. true = visible.
function toggle(customID) { // Function set on button, 'customID' is the ID
// of element to toggle with button. Ex:
// <button onclick="(toggle('menu')">Button</button>
var theToggledElement = document.getElementById(customID);
if (currentState === false) {
currentState = true;
theToggledElement.style.left = '0px';
console.log('State set to "visible" and left to "0px"');
}
else if (currentState === true) {
currentState = false;
theToggledElement.style.left = 'calc(-100% + (0.5cm + 1.461544602cm + .5cm))';
console.log('State set to "hidden" and left to "calc(-100% + (0.5cm + 1.461544602cm + .5cm))"')
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/50996260
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