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JS syntax highlighting for AQL queries

This commit is contained in:
Simran Brucherseifer 2016-06-29 15:16:49 +02:00
parent 1cdb90795a
commit 09af840b58
1 changed files with 10 additions and 10 deletions
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20
Documentation/Books/AQL/Advanced/ArrayOperators.mdpp
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@ -64,7 +64,7 @@ This will produce:
This is a shortcut for the longer, semantically equivalent query: This is a shortcut for the longer, semantically equivalent query:
``` ```js
FOR u IN users FOR u IN users
RETURN { name: u.name, friends: (FOR f IN u.friends RETURN f.name) } RETURN { name: u.name, friends: (FOR f IN u.friends RETURN f.name) }
``` ```
@ -83,7 +83,7 @@ so on.
Let's compare the array expansion operator with an array contraction operator. Let's compare the array expansion operator with an array contraction operator.
For example, the following query produces an array of friend names per user: For example, the following query produces an array of friend names per user:
``` ```js
FOR u IN users FOR u IN users
RETURN u.friends[*].name RETURN u.friends[*].name
``` ```
@ -115,7 +115,7 @@ the <i>[\*\*]</i> can be used if it has access to a multi-dimensional nested res
We can extend above query as follows and still create the same nested result: We can extend above query as follows and still create the same nested result:
``` ```js
RETURN ( RETURN (
FOR u IN users RETURN u.friends[*].name FOR u IN users RETURN u.friends[*].name
) )
@ -123,7 +123,7 @@ RETURN (
By now appending the <i>[\*\*]</i> operator at the end of the query... By now appending the <i>[\*\*]</i> operator at the end of the query...
``` ```js
RETURN ( RETURN (
FOR u IN users RETURN u.friends[*].name FOR u IN users RETURN u.friends[*].name
)[**] )[**]
@ -163,7 +163,7 @@ must occur in this order if they are used in combination, and can only occur onc
Example with nested numbers and array contraction: Example with nested numbers and array contraction:
``` ```js
LET arr = [ [ 1, 2 ], 3, [ 4, 5 ], 6 ] LET arr = [ [ 1, 2 ], 3, [ 4, 5 ], 6 ]
RETURN arr[** FILTER CURRENT % 2 == 0] RETURN arr[** FILTER CURRENT % 2 == 0]
``` ```
@ -178,7 +178,7 @@ All even numbers are returned in a flat array:
Complex example with multiple conditions, limit and projection: Complex example with multiple conditions, limit and projection:
``` ```js
FOR u IN users FOR u IN users
RETURN { RETURN {
name: u.name, name: u.name,
@ -219,7 +219,7 @@ older than 40 years are returned per user:
To return only the names of friends that have an *age* value To return only the names of friends that have an *age* value
higher than the user herself, an inline *FILTER* can be used: higher than the user herself, an inline *FILTER* can be used:
``` ```js
FOR u IN users FOR u IN users
RETURN { name: u.name, friends: u.friends[* FILTER CURRENT.age > u.age].name } RETURN { name: u.name, friends: u.friends[* FILTER CURRENT.age > u.age].name }
``` ```
@ -234,7 +234,7 @@ The number of elements returned can be restricted with *LIMIT*. It works the sam
as the [limit operation](../Operations/Limit.md). *LIMIT* must come after *FILTER* as the [limit operation](../Operations/Limit.md). *LIMIT* must come after *FILTER*
and before *RETURN*, if they are present. and before *RETURN*, if they are present.
``` ```js
FOR u IN users FOR u IN users
RETURN { name: u.name, friends: u.friends[* LIMIT 1].name } RETURN { name: u.name, friends: u.friends[* LIMIT 1].name }
``` ```
@ -251,7 +251,7 @@ Above example returns one friend each:
A number of elements can also be skipped and up to *n* returned: A number of elements can also be skipped and up to *n* returned:
``` ```js
FOR u IN users FOR u IN users
RETURN { name: u.name, friends: u.friends[* LIMIT 1,2].name } RETURN { name: u.name, friends: u.friends[* LIMIT 1,2].name }
``` ```
@ -272,7 +272,7 @@ per user:
To return a projection of the current element, use *RETURN*. If a *FILTER* is To return a projection of the current element, use *RETURN*. If a *FILTER* is
also present, *RETURN* must come later. also present, *RETURN* must come later.
``` ```js
FOR u IN users FOR u IN users
RETURN u.friends[* RETURN CONCAT(CURRENT.name, " is a friend of ", u.name)] RETURN u.friends[* RETURN CONCAT(CURRENT.name, " is a friend of ", u.name)]
``` ```