var mystring = 'okay.this.is.a.string.that.is.dot.separated';
  var constructedStatic = new RegExp("\\.","g");
  var shorthandStatic = /\./g;
  
  String.prototype.loopReplace = function(replacee,replacer){
    var result = this;
    while(!!~(result = result.replace('.',' ')).indexOf('.')){}
    return result;
  }

Teardown JS

Test cases

Test #1

Title *

Async

Code *result = mystring.replace(shorthandStatic," ");

Test #2

Title *

Async

Code *result = mystring.replace(constructedStatic," ");

Test #3

Title *

Async

Code *result = mystring.replace(new RegExp("\\.","g")," ");

Test #4

Title *

Async

Code *result = mystring.replace(/\./g,' ');

Test #5

Title *

Async

Code *result = mystring.split('.').join(' ');

Test #6

Title *

Async

Code *result = mystring.loopReplace('.',' ');

Test case details

Preparation Code

Test cases

Test #1

Test #2

Test #3

Test #4

Test #5

Test #6