[英]setTimeout() won't execute
我有两个使用setTimeout().
例子setTimeout().
这个有效:
<html>
<head>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type="text/javascript">
google.load('visualization','1',{packages:['table']});
function start() {
setTimeout(ShowClipboardContent, 2000);
}
function ShowClipboardContent() {
var data = new google.visualization.DataTable(window.clipboardData.getData('Text'));
var table = new google.visualization.Table(document.getElementById('div'));
table.draw(data,{showRowNumber: true});
}
</script>
</head>
<body>
<button onclick='start();'>Show text data in clipboard</button>
<div id='div'></div>
</body>
</html>
但这不会:
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>
google.load('visualization','1',{packages:['table']});
</script>
<script type='text/javascript'>
//runs powershell and copies output onto clipboard
function powershell(t) {
//object that will execute powershell
var run = new ActiveXObject("Shell.Application");
//breaks the list of servers into array
var servers = t.textarea.value.split('\n');
//script that powershell will run
var script = 'some powershell command';
//path to powershell.exe
var program = 'C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe';
//putting it all together
run.ShellExecute(program,script,'','open','1');
setTimeout(drawTable, 10000);
}
//draws data table using data from clipboard
function drawTable() {
var data = new google.visualization.DataTable(window.clipboardData.getData('Text'));
var table = new google.visualization.Table(document.getElementById('table'));
table.draw(data, {showRowNumber: true});
}
</script>
</head>
<body>
<div id='form'>
<form>
Enter name(s):<br />
<textarea id='textarea' style='width:20%; height:500px;'></textarea><br />
<button onclick='powershell(this.form)'>Query</button>
</form>
</div>
<div id='table'></div>
</body>
</html>
重申一下:问题是setTimeout()
不适用于第二个代码,但适用于第一个代码,我想知道为什么,因为我看不出有什么区别。
尝试添加一个console.log(drawTable);
就在你超时之前。 如果它返回“函数”,那很好,你的超时就可以了。 如果没有返回任何内容,您的 ActiveX 脚本应该会破坏代码
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