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yq/pkg/yqlib/doc/operators/headers/comment-operators.md
Abel Sen fa6fac1a76
Minor typos (#1595) 
* Remove extra backtick

* Reword explanation of update

* Reword explanation of relative update

* Change "remaple" to "remain"

* Change "clovver" to "clobber"

* Reword explanation of update for comment operators

* Reword explanation of relative update for comment operators

* Change "array" to "expression"

* Change "the golangs" to "Golang's"

* Change "golangs" to "Golang's"

* Change "can durations" to "can add durations"

* Change "array scalars" to "arrays"

* Change "beit" to "be it"

* Fix typo in `eval` tip

* Fix typo in header for `has` operation

* Add space before pipe in `line` operator example

* Fix typos in explanation of deep array merges

* Change "is now used" to "is now used."

* Change "object," to "object."

* Changes "indexes" to "indices"

* Remove extraneous copied text from `..` article

* Reword explanation of `...` operator

* Change "your are" to "you are"

* Add link to `string` operator docs in `select` article

* Change "is a" to "parameter specifies" in `string` operators article

* Change "new line" to "newline"

* Change "golang regex" to "Golang's regex"

* Change "golang" to "Golang"

* Add period

* Remove comma in `subtract` article

* Remove duplicate number subtraction example

* Remove comma in `traverse` operator article

* Clarify use of brackets when `read`ing with special characters
2023-03-16 13:39:36 +11:00

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Comment Operators

Use these comment operators to set or retrieve comments. Note that line comments on maps/arrays are actually set on the key node as opposed to the value (map/array). See below for examples.

Like the = and |= assign operators, the same syntax applies when updating comments:

plain form: =

This will set the LHS nodes' comments equal to the expression on the RHS. The RHS is run against the matching nodes in the pipeline

relative form: |=

This is similar to the plain form, but it evaluates the RHS with each matching LHS node as context. This is useful if you want to set the comments as a relative expression of the node, for instance its value or path.