v4.30.1

operators/array-to-map.md

@@ -0,0 +1,28 @@
+# Array to Map
+
+Use this operator to convert an array to..a map. The indices are used as map keys, null values in the array are skipped over.
+
+Behind the scenes, this is implemented using reduce:
+
+```
+(.[] | select(. != null) ) as $i ireduce({}; .[$i | key] = $i)
+```
+
+## Simple example
+Given a sample.yml file of:
+```yaml
+cool:
+  - null
+  - null
+  - hello
+```
+then
+```bash
+yq '.cool |= array_to_map' sample.yml
+```
+will output
+```yaml
+cool:
+  2: hello
+```
+

operators/datetime.md

@@ -60,7 +60,7 @@ a: 2001-12-15
 ## Format: get the day of the week
 Given a sample.yml file of:
 ```yaml
-a: 2001-12-15T02:59:43.1Z
+a: 2001-12-15
 ```
 then
 ```bash

operators/encode-decode.md

@@ -337,7 +337,7 @@ Given a sample.yml file of:
 a:
   cool:
     foo: bar
-    +id: hi
+    +@id: hi
 ```
 then
 ```bash
@@ -357,7 +357,7 @@ Given a sample.yml file of:
 a:
   cool:
     foo: bar
-    +id: hi
+    +@id: hi
 ```
 then
 ```bash
@@ -375,7 +375,7 @@ Given a sample.yml file of:
 a:
   cool:
     foo: bar
-    +id: hi
+    +@id: hi
 ```
 then
 ```bash

operators/slice-array.md

@@ -80,3 +80,26 @@ will output
 - frog
 ```
 
+## Inserting into the middle of an array
+using an expression to find the index
+
+Given a sample.yml file of:
+```yaml
+- cat
+- dog
+- frog
+- cow
+```
+then
+```bash
+yq '(.[] | select(. == "dog") | key + 1) as $pos | .[0:($pos)] + ["rabbit"] + .[$pos:]' sample.yml
+```
+will output
+```yaml
+- cat
+- dog
+- rabbit
+- frog
+- cow
+```
+

operators/sort.md

@@ -135,6 +135,24 @@ will output
 - a: 100
 ```
 
+## Sort by custom date field
+Given a sample.yml file of:
+```yaml
+- a: 12-Jun-2011
+- a: 23-Dec-2010
+- a: 10-Aug-2011
+```
+then
+```bash
+yq 'with_dtf("02-Jan-2006"; sort_by(.a))' sample.yml
+```
+will output
+```yaml
+- a: 23-Dec-2010
+- a: 12-Jun-2011
+- a: 10-Aug-2011
+```
+
 ## Sort, nulls come first
 Given a sample.yml file of:
 ```yaml