Question

我的代码不起作用，请帮帮我我想调用该函数并让它运行 ON ，当我再次调用它时， OFF 将被执行

＆＃13;

<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"/>
<div id="container">
    <div class="add-new-button">
      <div class="add-new-button-label">
        Add
      </div>
      <div class="add-new-button-icon">
        <i class="fa fa-plus"></i>
      </div>
    </div>
</div>

＆＃13;

Answer 1

如果你使用布尔值来避免混淆，也许会更好

<html lang="es">
<head>
<title>Helping people at StackOverflow</title>
<script>
window.onload = function(){
	// Start global "on" var in false/true state
	var on = false;

	function name (){
		if(on != true){
			// Set on state
			on = true;
			/* Execute "on" code rules

			*/
		}else{
			// Set off state
			on = false;
			/* Execute "off" code rules
			
			*/
		}
		console.log('Is "ON"?: ',on);
	}
	document.getElementById('btn').addEventListener('click',function(){
		name();
	});
}
</script>
</head>

<body>
<input id="btn" type="button" value='Ejecutar'>
</body>
</html>

如何在if中更改全局变量的值

1 个答案: