Javascript SCRIPT1028：需要的标识符、字符串或数字
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SCRIPT1028: Expected identifier, string or number
提问by user1712040
I'm running a plugin that displays an events calendar. It works great in all browsers except in IE compatibility mode. When that option is checked, the calendar disappears. I believe its a JS error.
我正在运行一个显示事件日历的插件。它适用于所有浏览器，除了 IE 兼容模式。选中该选项后，日历就会消失。我相信它是一个 JS 错误。
IE Debugger Error:
IE 调试器错误：
element.qtip({
content: {
text: event.description,
title: {
text: 'Description',
}
},
position: {
at: 'top right',
adjust: {
x: 0, y: 30
},
},
In my plugin editor this is the code:
在我的插件编辑器中，这是代码：
element.qtip({
content: {
text: event.description,
title: {
text: '<?php _e('Description', 'event_espresso'); ?>',
}
},
position: {
at: 'top right',
adjust: {
x: 0, y: 30
},
},
I'm not great at debugging so any help would be appreciated.
我不擅长调试，所以任何帮助将不胜感激。
If it helps, here is the page: http://www.mbausa.org/calendar/
如果有帮助，请访问以下页面：http: //www.mbausa.org/calendar/
回答by Bj?rn
Internet Explorer have troubles with trailing commas in objects and arrays;
Internet Explorer 遇到对象和数组中尾随逗号的问题；
title: {
text: 'Description', //<--
}
You probably want:
你可能想要：
title: {
text: 'Description'
}
回答by Mike McLin
There are 2 common causes for this error. Either having a trailing comma when inappropriate, or using a JavaScript reserved word. In your case, you have 2 unnecessary commas. Below is the correct code snippet, with comments where I removed the commas.
此错误有 2 个常见原因。在不合适时使用尾随逗号，或使用 JavaScript 保留字。在您的情况下，您有 2 个不必要的逗号。下面是正确的代码片段，其中包含我删除逗号的注释。
element.qtip({
content: {
text: event.description,
title: {
text: '<?php _e('Description', 'event_espresso'); ?>' // Removed Comma
}
},
position: {
at: 'top right',
adjust: {
x: 0, y: 30
} // Removed Comma
},
I actually did a blog post (and video) explaining the error and showing examples and fixes. It can be found here: http://mikemclin.net/fixing-error-script1028-expected-identifier-string-or-number/
我实际上做了一篇博文（和视频）解释错误并展示示例和修复。可以在这里找到：http: //mikemclin.net/fixing-error-script1028-expected-identifier-string-or-number/
回答by Pierre
Old version of IE doesn't support mal-formated JSON String.
旧版本的 IE 不支持格式错误的 JSON 字符串。
You should never put a comma ',' separator when no braces '[', accolades '{' or new object properties come after.
当后面没有大括号“[”、赞誉“{”或新的对象属性时，您不应该使用逗号“,”分隔符。
Try :
尝试 ：
position: {
at: 'top right',
adjust: {
x: 0, y: 30
} // <-- no comma here
},
instead of :
代替 ：
position: {
at: 'top right',
adjust: {
x: 0, y: 30
}, // <-- comma here
},
回答by igasparetto
If you are using Vuex and the issue manifests at the computedhook calling mapState, then the issue is with the spread operator.
如果您正在使用 Vuex 并且问题出现在computedhook 调用处mapState，那么问题出在扩展运算符上。
},
computed: {
...mapState({
Use babel to fix it: https://babeljs.io/docs/en/babel-plugin-proposal-object-rest-spread
使用 babel 修复：https: //babeljs.io/docs/en/babel-plugin-proposal-object-rest-spread
回答by El Ronnoco
Rather than work round compatibility mode you can force non-compatibility mode with...
您可以强制使用不兼容模式，而不是使用兼容模式...
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE8" />
in your <head>tag.
在你的<head>标签中。
回答by lulalala
Another possible error is due to the reserved keyword being used as hash key.
另一个可能的错误是由于保留关键字被用作散列键。
IE8 errors when defining a Javascript object?
When I use {class:'icon'}I would also get this error. Other IE8 keywords would probably do the same too.
当我使用时，{class:'icon'}我也会收到此错误。其他 IE8 关键字也可能会这样做。
回答by Rikard Askel?f
I got this error when trying to import a ES6 module without transpilation through Babel or similar tools.
我在尝试通过 Babel 或类似工具导入 ES6 模块而不进行转译时遇到此错误。
This row generated the error:
这一行产生了错误：
import myES6module from 'my-npm-ES6-module'
从“my-npm-ES6-module”导入 myES6module
The solution is to make sure your workflow actually transpiles it to browser-compatible JavaScript.
解决方案是确保您的工作流实际上将其转换为与浏览器兼容的 JavaScript。
