R – Advanced IDE

Output

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Execute Mode, Version, Inputs & Arguments ▼

REN 0.1.0_alpha

Command Line Arguments

Stdin Inputs

Interactive

Errors and Evaluation

No errors detected

📘 Ren Language Reference

Variables & Types

number x = 42

text s = "hello"

bool ok = true

list xs = [1, 2, 3]

const PI = 3.14

any val = "anything"

Control Flow

if x > 5
…
elseif x > 2
…
else … end

for i = 1 to 5
print i
end

for x in list
print x
end

while x < 10
x = x + 1
end

repeat 3
print "hi"
end

match val
case 1 …
default …
end

Functions & Classes

function add(a, b)
return a + b
end

class Dog
  function init(n)
    self.name = n
  end
end
Dog d = new Dog("Rex")

Error Handling

try
  …
catch err
  print err
finally
  …
end

raise "oops!"

-- Comments: --
--- Block ---

break / continue

Built-in Functions

printprintrawlen()toText()toNumber()toBool()sqrt()abs()floor()ceil()round()pow()upper()lower()trim()split()join()contains()replace()append()remove()sort()reverse()range()first()last()random()randint()isNull()

⌨️ Keyboard Shortcuts

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F11

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Esc

💡 Tips: Use print to output with newline, printraw without newline. Strings use "double quotes" only.

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