I need a filter to replace all the underscores to spaces in a string
string.replace not only accepts string as first argument but also it accepts regex as first argument. So put _ within regex delimiters / and aslo add g modifier along with that. g called global modifier which will do the replacement globally.
App.filter('underscoreless', function () {
return function (input) {
return input.replace(/_/g, ' ');
};
});