added string package flux functions

content/v2.0/reference/flux/functions/_index.md

@@ -9,8 +9,6 @@ weight: 101
 ---
 
 Flux's functional syntax allows you to retrieve, transform, process, and output data easily.
-There is a large library of built-in and importable functions.
-You can also [create your own custom functions](/v2.0/query-data/guides/custom-functions)
-to perform operations that suit your needs.
+There is a large library of built-in and importable functions:
 
 {{< children >}}

content/v2.0/reference/flux/functions/built-in/_index.md

@@ -1,6 +1,8 @@
 ---
 title: Built-in Flux functions
-description: placeholder
+description: >
+  Built-in functions provide a necessary foundation for working with data using Flux.
+  They do not require an import statement and are usable without any extra setup.
 menu:
   v2_0_ref:
     name: Built-in
@@ -8,4 +10,9 @@ menu:
 weight: 201
 ---
 
-Placeholder
+Built-in functions provide a necessary foundation for working with data using Flux.
+Because these functions are "built-in," they do not require an `import` statement and are usable without any extra setup.
+
+Built-in functions are grouped into the following categories:
+
+{{< children >}}

content/v2.0/reference/flux/functions/influxdb-v1/_index.md

@@ -1,6 +1,8 @@
 ---
 title: InfluxDB v1 Flux functions
-description: placeholder
+description: >
+  InfluxDB v1 Flux functions provide tools for managing data from an InfluxDB v1.x database.
+  To use them, import the "influxdata/influxdb/v1" package.
 menu:
   v2_0_ref:
     name: InfluxDB v1
@@ -8,4 +10,11 @@ menu:
 weight: 202
 ---
 
-Placeholder
+InfluxDB v1 Flux functions provide tools for managing data from an InfluxDB v1.x database.
+To use them, import the `influxdata/influxdb/v1` package:
+
+```js
+import "influxdata/influxdb/v1"
+```
+
+{{< children type="functions" show="pages" >}}

content/v2.0/reference/flux/functions/strings/_index.md

@@ -8,4 +8,11 @@ menu:
 weight: 203
 ---
 
-Placeholder
+String functions provide tools for manipulating strings in flux.
+To use them, import the `strings` package:
+
+```js
+import "strings"
+```
+
+{{< children type="functions" show="pages" >}}

content/v2.0/reference/flux/functions/strings/title.md

@@ -0,0 +1,38 @@
+---
+title: strings.title() function
+description: The strings.title() function converts a string to title case.
+menu:
+  v2_0_ref:
+    name: strings.title
+    parent: Strings
+weight: 301
+---
+
+The `strings.title()` function converts a string to title case.
+
+_**Output data type:** String_
+
+```js
+import "strings"
+
+strings.title(v: "a flux of foxes")
+
+// returns "A Flux Of Foxes"
+```
+
+## Paramters
+
+### v
+The string value to convert.
+
+_**Data type:** String_
+
+## Examples
+
+###### Convert all values of a column to title case
+```js
+import "strings"
+
+data
+  |> map(fn:(r) => strings.title(v: r.pageTitle))
+```

content/v2.0/reference/flux/functions/strings/tolower.md

@@ -0,0 +1,38 @@
+---
+title: strings.toLower() function
+description: The strings.toLower() function converts a string to lower case.
+menu:
+  v2_0_ref:
+    name: strings.toLower
+    parent: Strings
+weight: 301
+---
+
+The `strings.toLower()` function converts a string to lower case.
+
+_**Output data type:** String_
+
+```js
+import "strings"
+
+strings.toLower(v: "KOALA")
+
+// returns "koala"
+```
+
+## Paramters
+
+### v
+The string value to convert.
+
+_**Data type:** String_
+
+## Examples
+
+###### Convert all values of a column to lower case
+```js
+import "strings"
+
+data
+  |> map(fn:(r) => strings.toLower(v: r.exclamation))
+```

content/v2.0/reference/flux/functions/strings/toupper.md

@@ -0,0 +1,38 @@
+---
+title: strings.toUpper() function
+description: The strings.toUpper() function converts a string to upper case.
+menu:
+  v2_0_ref:
+    name: strings.toUpper
+    parent: Strings
+weight: 301
+---
+
+The `strings.toUpper()` function converts a string to upper case.
+
+_**Output data type:** String_
+
+```js
+import "strings"
+
+strings.toUpper(v: "koala")
+
+// returns "KOALA"
+```
+
+## Paramters
+
+### v
+The string value to convert.
+
+_**Data type:** String_
+
+## Examples
+
+###### Convert all values of a column to upper case
+```js
+import "strings"
+
+data
+  |> map(fn:(r) => strings.toUpper(v: r.envVars))
+```

content/v2.0/reference/flux/functions/strings/trim.md

@@ -0,0 +1,46 @@
+---
+title: strings.trim() function
+description: >
+  The strings.trim() function removes leading and trailing characters specified
+  in the cutset from a string.
+menu:
+  v2_0_ref:
+    name: strings.trim
+    parent: Strings
+weight: 301
+---
+
+The `strings.trim()` function removes leading and trailing characters specified
+in the [`cutset`](#cutset) from a string.
+
+_**Output data type:** String_
+
+```js
+import "strings"
+
+strings.trim(v: ".abc.", cutset: ".")
+
+// returns "abc"
+```
+
+## Paramters
+
+### v
+The string value from which to trim characters.
+
+_**Data type:** String_
+
+### cutset
+The leading and trailing characters from trim from the string value.
+
+_**Data type:** String_
+
+## Examples
+
+###### Trim leading and trailing periods from all values in a column
+```js
+import "strings"
+
+data
+  |> map(fn:(r) => strings.trim(v: r.variables, cutset: "."))
+```

content/v2.0/reference/flux/functions/strings/trimspace.md

@@ -0,0 +1,38 @@
+---
+title: strings.trimSpace() function
+description: The strings.trimSpace() function removes leading and trailing spaces from a string.
+menu:
+  v2_0_ref:
+    name: strings.trimSpace
+    parent: Strings
+weight: 301
+---
+
+The `strings.trimSpace()` function removes leading and trailing spaces from a string.
+
+_**Output data type:** String_
+
+```js
+import "strings"
+
+strings.trimSpace(v: "  abc  ")
+
+// returns "abc"
+```
+
+## Paramters
+
+### v
+The string value from which to trim spaces.
+
+_**Data type:** String_
+
+## Examples
+
+###### Trim leading and trailing spaces from all values in a column
+```js
+import "strings"
+
+data
+  |> map(fn:(r) => strings.trimSpace(v: r.userInput))
+```