有mqtt

heyujie

2021-05-20 6ebdefb4a5b2be82a8c452c0bb4624f3d85a17b7

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// Thanks to Andrew Clover:
// http://stackoverflow.com/questions/3561493
// /is-there-a-regexp-escape-function-in-javascript
 
"use strict";
 
var re = /[-/\\^$*+?.()|[\]{}]/g;
 
module.exports = function (str) { return String(str).replace(re, "\\$&"); };