如何修复javascript的运行方式以及合并页面在所有类型的标签中加载的方式
[英]How can I fix the way javascript runs and consolidate the way the page loads in all types of tabs
问题描述
I want to be able to get an alert with my ip address when I click the button but something strange is happening: In a normal tab: The site loads and nothing happens when I click the button. 
我希望能够在单击按钮时获得有关我的IP地址的警报，但发生了一些奇怪的事情：在正常选项卡中：该站点已加载，并且在单击按钮时没有任何反应。 In a private tab: The alert comes and once you press ok the button loads and on pressing nothing happens. 在一个私有选项卡中：警报出现，一旦您按OK，按钮即会加载，按此按钮则不会发生任何事情。 The javascript function ran even though I didn't use 即使我没有使用javascript函数，
How can I fix this? 我怎样才能解决这个问题？ Thanks in advance 提前致谢
<!DOCTYPE html> <html> <head> <script type="application/javascript"> function getIP(json) { alert(json.ip); } </script> <script type="application/javascript" src="https://api.ipify.org?format=jsonp&callback=getIP"></script> </head> <body> <button onclick="getIP()">CLICK ME</button> </body> </html>
2 个解决方案
解决方案1
1 已采纳 2019-08-08 01:57:02
The function getIP is being called when the ipify.org script finishes loading. ipify.org脚本完成加载时，将调用功能getIP 。 If you want to only display that ip when the button is clicked, store the ip value to some variable on window in the getIP callback. 如果只想在单击按钮时显示该ip，请将ip值存储到getIP回调window中的某个变量上。
<script type="application/javascript">
function getIP(json) {
window.ip = json.ip;
}
</script>
Now on you button you can do this to display the ip: 现在在您的按钮上，您可以执行以下操作以显示ip：
<button onclick="alert(window.ip)">CLICK ME</button>
or simply: 或者简单地：
<button onclick="alert(ip)">CLICK ME</button>
解决方案2
0 2019-08-08 01:33:49
Your button click event doesn't pass in the json parameter when it calls getIP() . 您的按钮单击事件在调用getIP()时不会传递json参数。
Instead the onclick event needs to call another function that will make a request for https://api.ipify.org?format=jsonp&callback=getIP . 相反， onclick事件需要调用另一个函数，该函数将请求https://api.ipify.org?format=jsonp&callback=getIP 。
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