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More lambda examples

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David Schmenk 2017-08-03 07:29:45 -07:00 committed by GitHub
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@ -1040,7 +1040,13 @@ puti(i) // print 4
A Lambda function is a simple, anonymous function that can be passed to a function or assigned to a variable. It is called as a function pointer. The function can take a number of parameters and return a value based on the parameters and global values. By enclosing the expression of the lambda function in paranthesis, multiple values can be returned.
```
def lambdas#0
def whatop(a, b, op)
puti(a); puts(" ? "); puti(b); puts(" = ")
puti(op(a, b); putln
end
def lambdas
word lambda1
word lambda2
word x, y
@ -1049,6 +1055,8 @@ def lambdas#0
lambda2 = &(a, b) (a + b, a - b)
x = lambda1(1, 2)#1 // This will return 3
x, y = lambda2(3, 4)#2 // This will return 7, -1
whatop(10, 20, &(a, b) a * b) // This will print 10 ? 20 = 200
return &(x, y, z) x * z / y // You can even return lambdas from definitions
end
````