不要与Regexp Javascript中的特定模式匹配

Question

我有一个可能包含动态值的mongodb查询，例如

[{$group: { _id: '$os_name', count: { $sum: 1 } }},{$sort:{count:-1}},{$out:'newc'},{$group: { _id: '$os_name', count: { $sum: 1 } }}]
[{$group: { _id: '$browser', count: { $sum: 1 } }},{$sort:{count:-1}},{$out:'deffC'}]

我希望在没有,{$out:'anything'}

的情况下始终匹配所有内容

最终结果是

[{$group: { _id: '$os_name', count: { $sum: 1 } }},{$sort:{count:-1}},{$group: { _id: '$os_name', count: { $sum: 1 } }}]
[{$group: { _id: '$browser', count: { $sum: 1 } }},{$sort:{count:-1}}]

Answer 1

匹配该字符串的正则表达式为：/,\{\$out:'.*'\}/g

＆＃13;

＆＃13;

let s = `[{$group: { _id: '$os_name', count: { $sum: 1 } }},{$sort:{count:-1}},{$out:'newc'},{$group: { _id: '$os_name', count: { $sum: 1 } }}]
         [{$group: { _id: '$browser', count: { $sum: 1 } }},{$sort:{count:-1}},{$out:'deffC'}]`;

s = s.replace(/,\{\$out:'.*'\}/g, '');

console.log(s);

＆＃13;

＆＃13;

＆＃13;