6 YAML Features most programmers don't know
6 YAML Features most programmers don’t know There are more examples that are similarly dangerous as Tom Ritchford pointed out 013 is mapped to 11 as the leading zero triggers the octal notation 4:30 is mapped to 270. Max Werner Kaul-Gothe and Niklas Baumstark informed me that this is automatically converted to minutes (or seconds?) as it is interpreted as a duration: 4*60 + 30 = 270 . Interestingly, this pattern still “works” with 1:1:1:1:1:1:1:1:4:30 . Multi-Line String mail_signature: | Martin Thoma Tel. +49 123 4567 { "mail_signature": "Martin Thoma\nTel. +49 123 4567" } Anchor The & defined a variable emailAddress with the value "info@example.de". The * then indicated that the name of a variable follows.