Error.prototype.columnNumber
非标准: 该特性是非标准的，请尽量不要在生产环境中使用它！
**columnNumber**属性包含引发此错误的文件行中的列号。
示例
使用 columnNumber
js
var e = new Error('Could not parse input');
throw e;
console.log(e.columnNumber) // 0
规范
No specification found
No specification data found for javascript.builtins.Error.columnNumber.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
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