I provided 14 different ways of 'checking if a string is digits only' with a string consisting of 123 followed by a newline.

Unprecedented threats tested freedom of expression and information rights everywhere: funding cuts, restrictive legislation, toxic online environments, escalating conflicts. Yet the IFEX network ...

Gene expression is the generation of a functional gene product from the information encoded by a gene, through the processes of transcription and translation. Gene products are often proteins, however ...