Today I Learned is an open-source project by Hashrocket that exists to catalogue the sharing & accumulation of knowledge as it happens day-to-day. Posts have a 200-word limit, and posting is open to any Rocketeer as well as selected friends of Hashrocket. We hope you enjoy learning along with us.
- /hashrockettil
- /hashrocket/tilex

Today I learned that we can specify a default value when getting a node in json using jq:

{
  "users": [
    {"name": "John"},
    {}
  ]
}

cat my.json | jq '[.users[] | .name // "my-default"]'
# [
#   "John",
#   "my-default"
# ]

Today I Learned

A Hashrocket project Follow on Twitter