| Booleans |
True, False |
true, false |
| Arithmetic |
+ - * / |
+ - * / |
| |
/ % |
quot mod rem |
| |
+1 -1 max() min() |
inc dec max min |
| Java String methods |
upper() |
.toUpperCase |
| |
lower() |
.toLowerCase |
| |
capitalize() |
.capitalize |
| Lists |
[1,2,3] |
'(1 2 3) |
| |
|
(list 1 2 3) |
| Add items to the front of a list |
['b', 'c'].insert(0,'a') |
(conj '('b' 'c') 'a') |
| Vectors |
[1, 2, 3] |
[1 2 3] |
| |
|
(vector 1 2 3) |
| Add items to the end of a vector |
['x', 'y'].append('z') |
(conj ['x' 'y'] 'z') |
| Sets |
|
#(1 1 2) |
| |
|
(set '(1 1 2)) |
| Maps |
{'a': 1, 'b': 2, 'c': 3} |
{:a 1, :b 2, :c 3} |
| |
|
{:a 1 :b 2 :c 3} |
| |
|
(hash-map :a 1, :b 2, :c 3) |
| Adding items to a map |
|
(conj {:a 1, :b 2} [:c 3]) |
| Sequences |
[1, 2, 3] |
(list 1 2 3) |
| |
|
'(1 2 3) |
| |
|
[1 2 3] |
| The first element of a list |
xs[0] |
(first xs) |
| The second element of a list |
xs[1] |
(second xs) |
| The last element of a list |
xs[-1] |
(last xs) |
| Everything but the first element of a list |
xs[1:] |
(rest xs) |
| Functions |
def plus2(i): return i + 2 |
(defn plus2 [i] (+ i 2)) |
| (inline) |
|
(fn [x] (+ x 2)) |
| |
|
#(+ % 2) |
| Strings |
'Hello world' |
“Hello world” |
| |
'Hello' + ' ' + "world" |
(str "Hello" " " "world") |
| Map |
map( lambda x: x*x, [1,2,3]) |
(map #(* % %) [1 2 3]) |
| |
[ x*x for x in [1, 2, 3]] |
|
| Reduce |
reduce(lambda x,y: x+y, [1,2,3] |
(reduce + [1 2 3]) |
| |
|
|
| Filter |
lambda x: x % 2 != 0, [1,2,3] |
(filter even? [1 2 3]) |
| |
|
|