yq/pkg/yqlib/doc/operators/headers/add.md
2022-01-23 11:35:44 +11:00

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# Add
Add behaves differently according to the type of the LHS:
* arrays: concatenate
* number scalars: arithmetic addition
* string scalars: concatenate
* maps: shallow merge (use the multiply operator (`*`) to deeply merge)
Use `+=` as a relative append assign for things like increment. Note that `.a += .x` is equivalent to running `.a = .a + .x`.