JS Regex for first level directory with/without Query String?

What would the JS regex be for a directory "/m/" ("m" is the actual directory name) with or without a query string? No file name will ever show, only a possibility of query strings.  Regex has to fail if another directory is present. This is the first level dir on a website which is the value returned by location.pathname. Examples:

Yes - /m/
Yes- /m/?a=b
No - /m/n/
No - /m/n/?a=b
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Jan LouwerensSoftware EngineerCommented:
var regex = /^\/m\/(\?.*)?$/;

var tests = ['/m/', '/m/?a=b', '/m/n/', ' /m/n/?a=b'];
for (var index = 0; index < tests.length; index++)
   var test = tests[index];
   console.log('-  %o: %o', test, regex.test(test));

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894359Author Commented:
Thank Jan!
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