Enable highlighting of hard-coded string literals in Angular Typescript source code files & HTML files

I want to Enable highlighting of hard-coded string literals and extract them. It appears that it is only available for JAVA projects and not Javascript/Typescript source code files (.ts) & HTML files

Kindly advice if my understanding is correct? If not, how to enable it?

I am able to highlight and extrract in Java project but not in typescript project. 

I am using 

IntelliJ IDEA 2019.1.3 (Ultimate Edition)
Build #IU-191.7479.19, built on May 28, 2019
JRE: 1.8.0_202-release-1483-b58 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Windows 10 10.0