Replace function of JavaScript don't work

Question

I have next code in javascript:

csvReport.name = "My New Report";
$scope.filename = csvReport.name.replace(" ", "_");

But I get $scope.filename = My_New Report. Not all spaces replacing.

What is it?

Answer 1

.replace will always replace the first occurence except if you use regular expression like that :

csvReport.name.replace(/ /g, "_");