> ## Documentation Index > Fetch the complete documentation index at: https://docs.xano.com/llms.txt > Use this file to discover all available pages before exploring further. # Array ## append `value|append:item:key` ```javascript theme={null} [1,2]|append:3 // Returns [1,2,3] {"a":1}|append:2:"b" // Returns {"a":1,"b":2} ``` ## count `value|count` ```javascript theme={null} [1,2,3]|count // Returns 3 {"a":1,"b":2}|count // Returns 2 ``` ## diff `value|diff:array` ```javascript theme={null} [1,2,3]|diff:[2,3] // Returns [1] [4,5,6]|diff:[4,5] // Returns [6] ``` ## diff\_assoc `value|diff_assoc:array` ```javascript theme={null} {"a":1,"b":2}|diff_assoc:{"b":2,"c":3} // Returns {"a":1} {"x":1,"y":2}|diff_assoc:{"y":3,"z":4} // Returns {"x":1,"y":2} ``` ## entries `value|entries` ```javascript theme={null} [1,2,3]|entries // Returns [[0,1],[1,2],[2,3]] {"a":1,"b":2}|entries // Returns [["a",1],["b",2]] ``` ## every `value|every:code:timeout` ```javascript theme={null} [2,4,6]|every:"x % 2 == 0":10 // Returns true (all numbers are even) [1,2,3]|every:"x > 0":10 // Returns true (all numbers are positive) ["cat","car"]|every:"x[0] == 'c'":5 // Returns true (all strings start with 'c') [{"age":20},{"age":30}]|every:"x.age >= 18":10 // Returns true (all ages are adult) ``` ## filter `value|filter:code:timeout` ```javascript theme={null} [1,2,3,4]|filter:"x > 2" // Returns [3,4] ["apple","banana"]|filter:"len(x) > 4" // Returns ["banana"] [{"age":20},{"age":30}]|filter:"x.age > 25" // Returns [{"age":30}] ``` ## filter\_empty `value|filter_empty` ```javascript theme={null} [1,"",null,2]|filter_empty // Returns [1,2] [0,false,"test"]|filter_empty // Returns ["test"] ``` ## filter\_empty\_array `value|filter_empty_array` ```javascript theme={null} [[1,2],[],[3]]|filter_empty_array // Returns [[1,2],[3]] []|filter_empty_array // Returns [] ``` ## filter\_empty\_object `value|filter_empty_object` ```javascript theme={null} [{a:1},{},{}]|filter_empty_object // Returns [{a:1}] []|filter_empty_object // Returns [] ``` ## filter\_empty\_text `value|filter_empty_text` ```javascript theme={null} ["foo", "", "bar"]|filter_empty_text // Returns ["foo", "bar"] []|filter_empty_text // Returns [] ``` ## filter\_false `value|filter_false` ```javascript theme={null} [true, false, true]|filter_false // Returns [true, true] [false, false]|filter_false // Returns [] ``` ## filter\_null `value|filter_null` ```javascript theme={null} [1, null, 2]|filter_null // Returns [1,2] [null, null]|filter_null // Returns [] ``` ## filter\_zero `value|filter_zero` ```javascript theme={null} [0,1,2,0]|filter_zero // Returns [1,2] [0,0]|filter_zero // Returns [] ``` ## find `value|find:code:timeout` ```javascript theme={null} [1,2,3]|find:"x > 1":10 // Returns 2 (first number greater than 1) ["cat","dog"]|find:"len(x) > 2":5 // Returns "cat" (first string longer than 2) [{"age":20},{"age":30}]|find:"x.age > 25":10 // Returns {"age":30} ``` ## findIndex `value|findIndex:code:timeout` ```javascript theme={null} [1,2,3]|findIndex:"x > 1":10 // Returns 1 (index of first number > 1) ["cat","dog"]|findIndex:"len(x) > 2":5 // Returns 0 (index of first string longer than 2) [{"age":20},{"age":30}]|findIndex:"x.age > 25":10 // Returns 1 ``` ## map `value|map:code:timeout` ```javascript theme={null} [1,2,3]|map:"x * 2":10 // Returns [2,4,6] ["a","b"]|map:"upper(x)":5 // Returns ["A","B"] [{"n":1},{"n":2}]|map:"x.n + 1":10 // Returns [2,3] ``` ## range `value|range:start:end` ```javascript theme={null} null|range:1:5 // Returns [1,2,3,4,5] null|range:0:2 // Returns [0,1,2] null|range:-2:2 // Returns [-2,-1,0,1,2] ``` ## reduce `value|reduce:initial:code:timeout` ```javascript theme={null} [1,2,3]|reduce:0:"acc + x":10 // Returns 6 (sum of array) ["a","b"]|reduce:"":"acc + x":5 // Returns "ab" (string concatenation) [1,2,3]|reduce:1:"acc * x":10 // Returns 6 (product of array) ``` ## first `value|first` ```javascript theme={null} [1,2,3]|first // Returns 1 []|first // Returns null ``` ## flatten `value|flatten` ```javascript theme={null} [[1,2],[3,4]]|flatten // Returns [1,2,3,4] [1,[2,[3]]]|flatten // Returns [1,2,3] ``` ## index\_by `value|index_by:key` ```javascript theme={null} [{"id":1,"name":"a"},{"id":2,"name":"b"}]|index_by:"id" // Returns {1:{"id":1,"name":"a"},2:{"id":2,"name":"b"}} ``` ## intersect `value|intersect:array` ```javascript theme={null} [1,2,3]|intersect:[2,3,4] // Returns [2,3] ["a","b"]|intersect:["b","c"] // Returns ["b"] ``` ## intersect\_assoc `value|intersect_assoc:array` ```javascript theme={null} {"a":1,"b":2}|intersect_assoc:{"b":2,"c":3} // Returns {"b":2} ``` ## join `value|join:separator` ```javascript theme={null} [1,2,3]|join:"," // Returns "1,2,3" ["a","b"]|join:"-" // Returns "a-b" ``` ## keys `value|keys` ```javascript theme={null} {"a":1,"b":2}|keys // Returns ["a","b"] [1,2,3]|keys // Returns [0,1,2] ``` ## last `value|last` ```javascript theme={null} [1,2,3]|last // Returns 3 []|last // Returns null ``` ## merge `value|merge:array` ```javascript theme={null} [1,2]|merge:[3,4] // Returns [1,2,3,4] {"a":1}|merge:{"b":2} // Returns {"a":1,"b":2} ``` ## merge\_recursive `value|merge_recursive:array` ```javascript theme={null} {"a":[1]}|merge_recursive:{"a":[2]} // Returns {"a":[1,2]} ``` ## pick `value|pick:keys` ```javascript theme={null} {"a":1,"b":2,"c":3}|pick:["a","b"] // Returns {"a":1,"b":2} ``` ## pop `value|pop` ```javascript theme={null} [1,2,3]|pop // Returns 3 ``` ## prepend `value|prepend:item:key` ```javascript theme={null} [1,2]|prepend:0 // Returns [0,1,2] {"b":2}|prepend:1:"a" // Returns {"a":1,"b":2} ``` ## push `value|push:item` ```javascript theme={null} [1,2]|push:3 // Returns [1,2,3] []|push:1 // Returns [1] ``` ## remove `value|remove:item:key:strict` ```javascript theme={null} [1,2,3]|remove:2 // Returns [1,3] {"a":1,"b":2}|remove:null:"b":true // Returns {"a":1} ``` ## reverse `value|reverse` ```javascript theme={null} [1,2,3]|reverse // Returns [3,2,1] ["a","b"]|reverse // Returns ["b","a"] ``` ## safe\_array `value|safe_array` ```javascript theme={null} null|safe_array // Returns [] [1,2]|safe_array // Returns [1,2] ``` ## shift `value|shift` ```javascript theme={null} [1,2,3]|shift // Returns [2,3] []|shift // Returns [] ``` ## shuffle `value|shuffle` ```javascript theme={null} [1,2,3]|shuffle // Returns randomly ordered array ["a","b"]|shuffle // Returns randomly ordered array ``` ## slice `value|slice:offset:length` ```javascript theme={null} [1,2,3,4]|slice:1:2 // Returns [2,3] ["a","b","c"]|slice:0:2 // Returns ["a","b"] ``` ## unique `value|unique:key` ```javascript theme={null} [1,2,2,3]|unique // Returns [1,2,3] [{"id":1},{"id":1}]|unique:"id" // Returns [{"id":1}] ``` ## unpick `value|unpick:keys` ```javascript theme={null} {"a":1,"b":2,"c":3}|unpick:["a","b"] // Returns {"c":3} ``` ## unshift `value|unshift:item` ```javascript theme={null} [1,2]|unshift:0 // Returns [0,1,2] []|unshift:1 // Returns [1] ``` ## values `value|values` ```javascript theme={null} {"a":1,"b":2}|values // Returns [1,2] [1,2,3]|values // Returns [1,2,3] ``` ## shuffle `value|shuffle` ```javascript theme={null} {"a":1,"b":2}|shuffle // Returns a shuffled version of the array ``` ## some `value|some:code:timeout` ```javascript theme={null} [1,2,3]|some:"x > 2":10 // Returns true (at least one element > 2) [1,1,1]|some:"x == 2":10 // Returns false ``` ## sort `value|sort` ```javascript theme={null} [3,1,2]|sort // Returns [1,2,3] ["b","a","c"]|sort // Returns ["a","b","c"] ```