Repetition in home.js. Two functions with same output.

[ghost]

retrieveSelectedModuleTitle(){
var userModules = this.state.userModules;
var modules = moduleplan.degree_course.modules;
var selectedModuleIds = [];
var selectedModuleTitles = [];
for (var i = 0; i < userModules.length; i++) {
if (userModules[i].selected){
selectedModuleIds.push(userModules[i].module_id);
}
}
for (var i = 0; i < selectedModuleIds.length; i++) {
for (var j=0; j < modules.length; j++){
if (selectedModuleIds[i] === modules[j].id) {
selectedModuleTitles.push(modules[j].title);
}
}
}
return selectedModuleTitles;
};

retrieveSelectedModules(){
var userModules = this.state.userModules;
var modules = moduleplan.degree_course.modules;
var selectedModuleIds = [];
var selectedModuleTitles = [];
for (var i = 0; i < userModules.length; i++) {
if (userModules[i].selected){
selectedModuleIds.push(userModules[i].module_id);
}
}
for (var i = 0; i < selectedModuleIds.length; i++) {
for (var j=0; j < modules.length; j++){
if (selectedModuleIds[i] === modules[j].id) {
modules[j].module_id = selectedModuleIds[i];
selectedModuleTitles.push(modules[j]);
}
}
}
return selectedModuleTitles;
};