pkoppstein
3ec66c858c
Mostly clarifications w.r.t. numbers. The anomalous behavior of leading minus signs is documented, with an explicit notice that this will probably change.
875 lines
12 KiB
Plaintext
Generated
875 lines
12 KiB
Plaintext
Generated
.
|
|
"Hello, world!"
|
|
"Hello, world!"
|
|
|
|
.
|
|
0.12345678901234567890123456789
|
|
0.12345678901234567890123456789
|
|
|
|
[., tojson]
|
|
12345678909876543212345
|
|
[12345678909876543212345,"12345678909876543212345"]
|
|
|
|
. < 0.12345678901234567890123456788
|
|
0.12345678901234567890123456789
|
|
false
|
|
|
|
map([., . == 1]) | tojson
|
|
[1, 1.000, 1.0, 100e-2]
|
|
"[[1,true],[1.000,true],[1.0,true],[1.00,true]]"
|
|
|
|
. as $big | [$big, $big + 1] | map(. > 10000000000000000000000000000000)
|
|
10000000000000000000000000000001
|
|
[true, false]
|
|
|
|
.foo
|
|
{"foo": 42, "bar": "less interesting data"}
|
|
42
|
|
|
|
.foo
|
|
{"notfoo": true, "alsonotfoo": false}
|
|
null
|
|
|
|
.["foo"]
|
|
{"foo": 42}
|
|
42
|
|
|
|
.foo?
|
|
{"foo": 42, "bar": "less interesting data"}
|
|
42
|
|
|
|
.foo?
|
|
{"notfoo": true, "alsonotfoo": false}
|
|
null
|
|
|
|
.["foo"]?
|
|
{"foo": 42}
|
|
42
|
|
|
|
[.foo?]
|
|
[1,2]
|
|
[]
|
|
|
|
.[0]
|
|
[{"name":"JSON", "good":true}, {"name":"XML", "good":false}]
|
|
{"name":"JSON", "good":true}
|
|
|
|
.[2]
|
|
[{"name":"JSON", "good":true}, {"name":"XML", "good":false}]
|
|
null
|
|
|
|
.[-2]
|
|
[1,2,3]
|
|
2
|
|
|
|
.[2:4]
|
|
["a","b","c","d","e"]
|
|
["c", "d"]
|
|
|
|
.[2:4]
|
|
"abcdefghi"
|
|
"cd"
|
|
|
|
.[:3]
|
|
["a","b","c","d","e"]
|
|
["a", "b", "c"]
|
|
|
|
.[-2:]
|
|
["a","b","c","d","e"]
|
|
["d", "e"]
|
|
|
|
.[]
|
|
[{"name":"JSON", "good":true}, {"name":"XML", "good":false}]
|
|
{"name":"JSON", "good":true}
|
|
{"name":"XML", "good":false}
|
|
|
|
.[]
|
|
[]
|
|
|
|
.[]
|
|
{"a": 1, "b": 1}
|
|
1
|
|
1
|
|
|
|
.foo, .bar
|
|
{"foo": 42, "bar": "something else", "baz": true}
|
|
42
|
|
"something else"
|
|
|
|
.user, .projects[]
|
|
{"user":"stedolan", "projects": ["jq", "wikiflow"]}
|
|
"stedolan"
|
|
"jq"
|
|
"wikiflow"
|
|
|
|
.[4,2]
|
|
["a","b","c","d","e"]
|
|
"e"
|
|
"c"
|
|
|
|
.[] | .name
|
|
[{"name":"JSON", "good":true}, {"name":"XML", "good":false}]
|
|
"JSON"
|
|
"XML"
|
|
|
|
(. + 2) * 5
|
|
1
|
|
15
|
|
|
|
[.user, .projects[]]
|
|
{"user":"stedolan", "projects": ["jq", "wikiflow"]}
|
|
["stedolan", "jq", "wikiflow"]
|
|
|
|
[ .[] | . * 2]
|
|
[1, 2, 3]
|
|
[2, 4, 6]
|
|
|
|
{user, title: .titles[]}
|
|
{"user":"stedolan","titles":["JQ Primer", "More JQ"]}
|
|
{"user":"stedolan", "title": "JQ Primer"}
|
|
{"user":"stedolan", "title": "More JQ"}
|
|
|
|
{(.user): .titles}
|
|
{"user":"stedolan","titles":["JQ Primer", "More JQ"]}
|
|
{"stedolan": ["JQ Primer", "More JQ"]}
|
|
|
|
..|.a?
|
|
[[{"a":1}]]
|
|
1
|
|
|
|
.a + 1
|
|
{"a": 7}
|
|
8
|
|
|
|
.a + .b
|
|
{"a": [1,2], "b": [3,4]}
|
|
[1,2,3,4]
|
|
|
|
.a + null
|
|
{"a": 1}
|
|
1
|
|
|
|
.a + 1
|
|
{}
|
|
1
|
|
|
|
{a: 1} + {b: 2} + {c: 3} + {a: 42}
|
|
null
|
|
{"a": 42, "b": 2, "c": 3}
|
|
|
|
4 - .a
|
|
{"a":3}
|
|
1
|
|
|
|
. - ["xml", "yaml"]
|
|
["xml", "yaml", "json"]
|
|
["json"]
|
|
|
|
10 / . * 3
|
|
5
|
|
6
|
|
|
|
. / ", "
|
|
"a, b,c,d, e"
|
|
["a","b,c,d","e"]
|
|
|
|
{"k": {"a": 1, "b": 2}} * {"k": {"a": 0,"c": 3}}
|
|
null
|
|
{"k": {"a": 0, "b": 2, "c": 3}}
|
|
|
|
.[] | (1 / .)?
|
|
[1,0,-1]
|
|
1
|
|
-1
|
|
|
|
.[] | length
|
|
[[1,2], "string", {"a":2}, null, -5]
|
|
2
|
|
6
|
|
1
|
|
0
|
|
5
|
|
|
|
utf8bytelength
|
|
"\u03bc"
|
|
2
|
|
|
|
keys
|
|
{"abc": 1, "abcd": 2, "Foo": 3}
|
|
["Foo", "abc", "abcd"]
|
|
|
|
keys
|
|
[42,3,35]
|
|
[0,1,2]
|
|
|
|
map(has("foo"))
|
|
[{"foo": 42}, {}]
|
|
[true, false]
|
|
|
|
map(has(2))
|
|
[[0,1], ["a","b","c"]]
|
|
[false, true]
|
|
|
|
.[] | in({"foo": 42})
|
|
["foo", "bar"]
|
|
true
|
|
false
|
|
|
|
map(in([0,1]))
|
|
[2, 0]
|
|
[false, true]
|
|
|
|
map(.+1)
|
|
[1,2,3]
|
|
[2,3,4]
|
|
|
|
map_values(.+1)
|
|
{"a": 1, "b": 2, "c": 3}
|
|
{"a": 2, "b": 3, "c": 4}
|
|
|
|
map(., .)
|
|
[1,2]
|
|
[1,1,2,2]
|
|
|
|
map_values(. // empty)
|
|
{"a": null, "b": true, "c": false}
|
|
{"b":true}
|
|
|
|
pick(.a, .b.c, .x)
|
|
{"a": 1, "b": {"c": 2, "d": 3}, "e": 4}
|
|
{"a":1,"b":{"c":2},"x":null}
|
|
|
|
[1,2,3,4] | pick(.[2], .[0], .[0])
|
|
[1,2,3,4]
|
|
[1,null,3]
|
|
|
|
path(.a[0].b)
|
|
null
|
|
["a",0,"b"]
|
|
|
|
[path(..)]
|
|
{"a":[{"b":1}]}
|
|
[[],["a"],["a",0],["a",0,"b"]]
|
|
|
|
del(.foo)
|
|
{"foo": 42, "bar": 9001, "baz": 42}
|
|
{"bar": 9001, "baz": 42}
|
|
|
|
del(.[1, 2])
|
|
["foo", "bar", "baz"]
|
|
["foo"]
|
|
|
|
getpath(["a","b"])
|
|
null
|
|
null
|
|
|
|
[getpath(["a","b"], ["a","c"])]
|
|
{"a":{"b":0, "c":1}}
|
|
[0, 1]
|
|
|
|
setpath(["a","b"]; 1)
|
|
null
|
|
{"a": {"b": 1}}
|
|
|
|
setpath(["a","b"]; 1)
|
|
{"a":{"b":0}}
|
|
{"a": {"b": 1}}
|
|
|
|
setpath([0,"a"]; 1)
|
|
null
|
|
[{"a":1}]
|
|
|
|
delpaths([["a","b"]])
|
|
{"a":{"b":1},"x":{"y":2}}
|
|
{"a":{},"x":{"y":2}}
|
|
|
|
to_entries
|
|
{"a": 1, "b": 2}
|
|
[{"key":"a", "value":1}, {"key":"b", "value":2}]
|
|
|
|
from_entries
|
|
[{"key":"a", "value":1}, {"key":"b", "value":2}]
|
|
{"a": 1, "b": 2}
|
|
|
|
with_entries(.key |= "KEY_" + .)
|
|
{"a": 1, "b": 2}
|
|
{"KEY_a": 1, "KEY_b": 2}
|
|
|
|
map(select(. >= 2))
|
|
[1,5,3,0,7]
|
|
[5,3,7]
|
|
|
|
.[] | select(.id == "second")
|
|
[{"id": "first", "val": 1}, {"id": "second", "val": 2}]
|
|
{"id": "second", "val": 2}
|
|
|
|
.[]|numbers
|
|
[[],{},1,"foo",null,true,false]
|
|
1
|
|
|
|
1, empty, 2
|
|
null
|
|
1
|
|
2
|
|
|
|
[1,2,empty,3]
|
|
null
|
|
[1,2,3]
|
|
|
|
try error("\($__loc__)") catch .
|
|
null
|
|
"{\"file\":\"<top-level>\",\"line\":1}"
|
|
|
|
[paths]
|
|
[1,[[],{"a":2}]]
|
|
[[0],[1],[1,0],[1,1],[1,1,"a"]]
|
|
|
|
[paths(type == "number")]
|
|
[1,[[],{"a":2}]]
|
|
[[0],[1,1,"a"]]
|
|
|
|
add
|
|
["a","b","c"]
|
|
"abc"
|
|
|
|
add
|
|
[1, 2, 3]
|
|
6
|
|
|
|
add
|
|
[]
|
|
null
|
|
|
|
any
|
|
[true, false]
|
|
true
|
|
|
|
any
|
|
[false, false]
|
|
false
|
|
|
|
any
|
|
[]
|
|
false
|
|
|
|
all
|
|
[true, false]
|
|
false
|
|
|
|
all
|
|
[true, true]
|
|
true
|
|
|
|
all
|
|
[]
|
|
true
|
|
|
|
flatten
|
|
[1, [2], [[3]]]
|
|
[1, 2, 3]
|
|
|
|
flatten(1)
|
|
[1, [2], [[3]]]
|
|
[1, 2, [3]]
|
|
|
|
flatten
|
|
[[]]
|
|
[]
|
|
|
|
flatten
|
|
[{"foo": "bar"}, [{"foo": "baz"}]]
|
|
[{"foo": "bar"}, {"foo": "baz"}]
|
|
|
|
range(2; 4)
|
|
null
|
|
2
|
|
3
|
|
|
|
[range(2; 4)]
|
|
null
|
|
[2,3]
|
|
|
|
[range(4)]
|
|
null
|
|
[0,1,2,3]
|
|
|
|
[range(0; 10; 3)]
|
|
null
|
|
[0,3,6,9]
|
|
|
|
[range(0; 10; -1)]
|
|
null
|
|
[]
|
|
|
|
[range(0; -5; -1)]
|
|
null
|
|
[0,-1,-2,-3,-4]
|
|
|
|
floor
|
|
3.14159
|
|
3
|
|
|
|
sqrt
|
|
9
|
|
3
|
|
|
|
.[] | tonumber
|
|
[1, "1"]
|
|
1
|
|
1
|
|
|
|
.[] | tostring
|
|
[1, "1", [1]]
|
|
"1"
|
|
"1"
|
|
"[1]"
|
|
|
|
map(type)
|
|
[0, false, [], {}, null, "hello"]
|
|
["number", "boolean", "array", "object", "null", "string"]
|
|
|
|
.[] | (infinite * .) < 0
|
|
[-1, 1]
|
|
true
|
|
false
|
|
|
|
infinite, nan | type
|
|
null
|
|
"number"
|
|
"number"
|
|
|
|
sort
|
|
[8,3,null,6]
|
|
[null,3,6,8]
|
|
|
|
sort_by(.foo)
|
|
[{"foo":4, "bar":10}, {"foo":3, "bar":100}, {"foo":2, "bar":1}]
|
|
[{"foo":2, "bar":1}, {"foo":3, "bar":100}, {"foo":4, "bar":10}]
|
|
|
|
group_by(.foo)
|
|
[{"foo":1, "bar":10}, {"foo":3, "bar":100}, {"foo":1, "bar":1}]
|
|
[[{"foo":1, "bar":10}, {"foo":1, "bar":1}], [{"foo":3, "bar":100}]]
|
|
|
|
min
|
|
[5,4,2,7]
|
|
2
|
|
|
|
max_by(.foo)
|
|
[{"foo":1, "bar":14}, {"foo":2, "bar":3}]
|
|
{"foo":2, "bar":3}
|
|
|
|
unique
|
|
[1,2,5,3,5,3,1,3]
|
|
[1,2,3,5]
|
|
|
|
unique_by(.foo)
|
|
[{"foo": 1, "bar": 2}, {"foo": 1, "bar": 3}, {"foo": 4, "bar": 5}]
|
|
[{"foo": 1, "bar": 2}, {"foo": 4, "bar": 5}]
|
|
|
|
unique_by(length)
|
|
["chunky", "bacon", "kitten", "cicada", "asparagus"]
|
|
["bacon", "chunky", "asparagus"]
|
|
|
|
reverse
|
|
[1,2,3,4]
|
|
[4,3,2,1]
|
|
|
|
contains("bar")
|
|
"foobar"
|
|
true
|
|
|
|
contains(["baz", "bar"])
|
|
["foobar", "foobaz", "blarp"]
|
|
true
|
|
|
|
contains(["bazzzzz", "bar"])
|
|
["foobar", "foobaz", "blarp"]
|
|
false
|
|
|
|
contains({foo: 12, bar: [{barp: 12}]})
|
|
{"foo": 12, "bar":[1,2,{"barp":12, "blip":13}]}
|
|
true
|
|
|
|
contains({foo: 12, bar: [{barp: 15}]})
|
|
{"foo": 12, "bar":[1,2,{"barp":12, "blip":13}]}
|
|
false
|
|
|
|
indices(", ")
|
|
"a,b, cd, efg, hijk"
|
|
[3,7,12]
|
|
|
|
indices(1)
|
|
[0,1,2,1,3,1,4]
|
|
[1,3,5]
|
|
|
|
indices([1,2])
|
|
[0,1,2,3,1,4,2,5,1,2,6,7]
|
|
[1,8]
|
|
|
|
index(", ")
|
|
"a,b, cd, efg, hijk"
|
|
3
|
|
|
|
rindex(", ")
|
|
"a,b, cd, efg, hijk"
|
|
12
|
|
|
|
inside("foobar")
|
|
"bar"
|
|
true
|
|
|
|
inside(["foobar", "foobaz", "blarp"])
|
|
["baz", "bar"]
|
|
true
|
|
|
|
inside(["foobar", "foobaz", "blarp"])
|
|
["bazzzzz", "bar"]
|
|
false
|
|
|
|
inside({"foo": 12, "bar":[1,2,{"barp":12, "blip":13}]})
|
|
{"foo": 12, "bar": [{"barp": 12}]}
|
|
true
|
|
|
|
inside({"foo": 12, "bar":[1,2,{"barp":12, "blip":13}]})
|
|
{"foo": 12, "bar": [{"barp": 15}]}
|
|
false
|
|
|
|
[.[]|startswith("foo")]
|
|
["fo", "foo", "barfoo", "foobar", "barfoob"]
|
|
[false, true, false, true, false]
|
|
|
|
[.[]|endswith("foo")]
|
|
["foobar", "barfoo"]
|
|
[false, true]
|
|
|
|
combinations
|
|
[[1,2], [3, 4]]
|
|
[1, 3]
|
|
[1, 4]
|
|
[2, 3]
|
|
[2, 4]
|
|
|
|
combinations(2)
|
|
[0, 1]
|
|
[0, 0]
|
|
[0, 1]
|
|
[1, 0]
|
|
[1, 1]
|
|
|
|
[.[]|ltrimstr("foo")]
|
|
["fo", "foo", "barfoo", "foobar", "afoo"]
|
|
["fo","","barfoo","bar","afoo"]
|
|
|
|
[.[]|rtrimstr("foo")]
|
|
["fo", "foo", "barfoo", "foobar", "foob"]
|
|
["fo","","bar","foobar","foob"]
|
|
|
|
explode
|
|
"foobar"
|
|
[102,111,111,98,97,114]
|
|
|
|
implode
|
|
[65, 66, 67]
|
|
"ABC"
|
|
|
|
join(", ")
|
|
["a","b,c,d","e"]
|
|
"a, b,c,d, e"
|
|
|
|
join(" ")
|
|
["a",1,2.3,true,null,false]
|
|
"a 1 2.3 true false"
|
|
|
|
ascii_upcase
|
|
"useful but not for é"
|
|
"USEFUL BUT NOT FOR é"
|
|
|
|
[while(.<100; .*2)]
|
|
1
|
|
[1,2,4,8,16,32,64]
|
|
|
|
[repeat(.*2, error)?]
|
|
1
|
|
[2]
|
|
|
|
[.,1]|until(.[0] < 1; [.[0] - 1, .[1] * .[0]])|.[1]
|
|
4
|
|
24
|
|
|
|
recurse(.foo[])
|
|
{"foo":[{"foo": []}, {"foo":[{"foo":[]}]}]}
|
|
{"foo":[{"foo":[]},{"foo":[{"foo":[]}]}]}
|
|
{"foo":[]}
|
|
{"foo":[{"foo":[]}]}
|
|
{"foo":[]}
|
|
|
|
recurse
|
|
{"a":0,"b":[1]}
|
|
{"a":0,"b":[1]}
|
|
0
|
|
[1]
|
|
1
|
|
|
|
recurse(. * .; . < 20)
|
|
2
|
|
2
|
|
4
|
|
16
|
|
|
|
walk(if type == "array" then sort else . end)
|
|
[[4, 1, 7], [8, 5, 2], [3, 6, 9]]
|
|
[[1,4,7],[2,5,8],[3,6,9]]
|
|
|
|
$ENV.PAGER
|
|
null
|
|
"less"
|
|
|
|
env.PAGER
|
|
null
|
|
"less"
|
|
|
|
transpose
|
|
[[1], [2,3]]
|
|
[[1,2],[null,3]]
|
|
|
|
bsearch(0)
|
|
[0,1]
|
|
0
|
|
|
|
bsearch(0)
|
|
[1,2,3]
|
|
-1
|
|
|
|
bsearch(4) as $ix | if $ix < 0 then .[-(1+$ix)] = 4 else . end
|
|
[1,2,3]
|
|
[1,2,3,4]
|
|
|
|
"The input was \(.), which is one less than \(.+1)"
|
|
42
|
|
"The input was 42, which is one less than 43"
|
|
|
|
[.[]|tostring]
|
|
[1, "foo", ["foo"]]
|
|
["1","foo","[\"foo\"]"]
|
|
|
|
[.[]|tojson]
|
|
[1, "foo", ["foo"]]
|
|
["1","\"foo\"","[\"foo\"]"]
|
|
|
|
[.[]|tojson|fromjson]
|
|
[1, "foo", ["foo"]]
|
|
[1,"foo",["foo"]]
|
|
|
|
@html
|
|
"This works if x < y"
|
|
"This works if x < y"
|
|
|
|
@sh "echo \(.)"
|
|
"O'Hara's Ale"
|
|
"echo 'O'\\''Hara'\\''s Ale'"
|
|
|
|
@base64
|
|
"This is a message"
|
|
"VGhpcyBpcyBhIG1lc3NhZ2U="
|
|
|
|
@base64d
|
|
"VGhpcyBpcyBhIG1lc3NhZ2U="
|
|
"This is a message"
|
|
|
|
fromdate
|
|
"2015-03-05T23:51:47Z"
|
|
1425599507
|
|
|
|
strptime("%Y-%m-%dT%H:%M:%SZ")
|
|
"2015-03-05T23:51:47Z"
|
|
[2015,2,5,23,51,47,4,63]
|
|
|
|
strptime("%Y-%m-%dT%H:%M:%SZ")|mktime
|
|
"2015-03-05T23:51:47Z"
|
|
1425599507
|
|
|
|
. == false
|
|
null
|
|
false
|
|
|
|
. == {"b": {"d": (4 + 1e-20), "c": 3}, "a":1}
|
|
{"a":1, "b": {"c": 3, "d": 4}}
|
|
true
|
|
|
|
.[] == 1
|
|
[1, 1.0, "1", "banana"]
|
|
true
|
|
true
|
|
false
|
|
false
|
|
|
|
if . == 0 then "zero" elif . == 1 then "one" else "many" end
|
|
2
|
|
"many"
|
|
|
|
. < 5
|
|
2
|
|
true
|
|
|
|
42 and "a string"
|
|
null
|
|
true
|
|
|
|
(true, false) or false
|
|
null
|
|
true
|
|
false
|
|
|
|
(true, true) and (true, false)
|
|
null
|
|
true
|
|
false
|
|
true
|
|
false
|
|
|
|
[true, false | not]
|
|
null
|
|
[false, true]
|
|
|
|
.foo // 42
|
|
{"foo": 19}
|
|
19
|
|
|
|
.foo // 42
|
|
{}
|
|
42
|
|
|
|
try .a catch ". is not an object"
|
|
true
|
|
". is not an object"
|
|
|
|
[.[]|try .a]
|
|
[{}, true, {"a":1}]
|
|
[null, 1]
|
|
|
|
try error("some exception") catch .
|
|
true
|
|
"some exception"
|
|
|
|
[.[] | .a?]
|
|
[{}, true, {"a":1}]
|
|
[null, 1]
|
|
|
|
[.[] | tonumber?]
|
|
["1", "invalid", "3", 4]
|
|
[1, 3, 4]
|
|
|
|
.bar as $x | .foo | . + $x
|
|
{"foo":10, "bar":200}
|
|
210
|
|
|
|
. as $i|[(.*2|. as $i| $i), $i]
|
|
5
|
|
[10,5]
|
|
|
|
. as [$a, $b, {c: $c}] | $a + $b + $c
|
|
[2, 3, {"c": 4, "d": 5}]
|
|
9
|
|
|
|
.[] as [$a, $b] | {a: $a, b: $b}
|
|
[[0], [0, 1], [2, 1, 0]]
|
|
{"a":0,"b":null}
|
|
{"a":0,"b":1}
|
|
{"a":2,"b":1}
|
|
|
|
.[] as {$a, $b, c: {$d, $e}} ?// {$a, $b, c: [{$d, $e}]} | {$a, $b, $d, $e}
|
|
[{"a": 1, "b": 2, "c": {"d": 3, "e": 4}}, {"a": 1, "b": 2, "c": [{"d": 3, "e": 4}]}]
|
|
{"a":1,"b":2,"d":3,"e":4}
|
|
{"a":1,"b":2,"d":3,"e":4}
|
|
|
|
.[] as {$a, $b, c: {$d}} ?// {$a, $b, c: [{$e}]} | {$a, $b, $d, $e}
|
|
[{"a": 1, "b": 2, "c": {"d": 3, "e": 4}}, {"a": 1, "b": 2, "c": [{"d": 3, "e": 4}]}]
|
|
{"a":1,"b":2,"d":3,"e":null}
|
|
{"a":1,"b":2,"d":null,"e":4}
|
|
|
|
.[] as [$a] ?// [$b] | if $a != null then error("err: \($a)") else {$a,$b} end
|
|
[[3]]
|
|
{"a":null,"b":3}
|
|
|
|
def addvalue(f): . + [f]; map(addvalue(.[0]))
|
|
[[1,2],[10,20]]
|
|
[[1,2,1], [10,20,10]]
|
|
|
|
def addvalue(f): f as $x | map(. + $x); addvalue(.[0])
|
|
[[1,2],[10,20]]
|
|
[[1,2,1,2], [10,20,1,2]]
|
|
|
|
reduce .[] as $item (0; . + $item)
|
|
[10,2,5,3]
|
|
20
|
|
|
|
isempty(empty)
|
|
null
|
|
true
|
|
|
|
[limit(3;.[])]
|
|
[0,1,2,3,4,5,6,7,8,9]
|
|
[0,1,2]
|
|
|
|
[first(range(.)), last(range(.)), nth(./2; range(.))]
|
|
10
|
|
[0,9,5]
|
|
|
|
[range(.)]|[first, last, nth(5)]
|
|
10
|
|
[0,9,5]
|
|
|
|
[foreach .[] as $item ([[],[]]; if $item == null then [[],.[0]] else [(.[0] + [$item]),[]] end; if $item == null then .[1] else empty end)]
|
|
[1,2,3,4,null,"a","b",null]
|
|
[[1,2,3,4],["a","b"]]
|
|
|
|
def range(init; upto; by): def _range: if (by > 0 and . < upto) or (by < 0 and . > upto) then ., ((.+by)|_range) else . end; if by == 0 then init else init|_range end | select((by > 0 and . < upto) or (by < 0 and . > upto)); range(0; 10; 3)
|
|
null
|
|
0
|
|
3
|
|
6
|
|
9
|
|
|
|
def while(cond; update): def _while: if cond then ., (update | _while) else empty end; _while; [while(.<100; .*2)]
|
|
1
|
|
[1,2,4,8,16,32,64]
|
|
|
|
[1|truncate_stream([[0],1],[[1,0],2],[[1,0]],[[1]])]
|
|
1
|
|
[[[0],2],[[0]]]
|
|
|
|
fromstream(1|truncate_stream([[0],1],[[1,0],2],[[1,0]],[[1]]))
|
|
null
|
|
[2]
|
|
|
|
. as $dot|fromstream($dot|tostream)|.==$dot
|
|
[0,[1,{"a":1},{"b":2}]]
|
|
true
|
|
|
|
(..|select(type=="boolean")) |= if . then 1 else 0 end
|
|
[true,false,[5,true,[true,[false]],false]]
|
|
[1,0,[5,1,[1,[0]],0]]
|
|
|
|
.foo += 1
|
|
{"foo": 42}
|
|
{"foo": 43}
|
|
|
|
.a = .b
|
|
{"a": {"b": 10}, "b": 20}
|
|
{"a":20,"b":20}
|
|
|
|
.a |= .b
|
|
{"a": {"b": 10}, "b": 20}
|
|
{"a":10,"b":20}
|
|
|
|
(.a, .b) = range(3)
|
|
null
|
|
{"a":0,"b":0}
|
|
{"a":1,"b":1}
|
|
{"a":2,"b":2}
|
|
|
|
(.a, .b) |= range(3)
|
|
null
|
|
{"a":0,"b":0}
|
|
|