Python generators in various languages [closed]

Answer 1

In JavaScript 1.7+ I usually only have to add a few parentheses and brackets. Everything else is about the same. JavaScript 1.7 introduced pythonic generators and iterators among other things.

Generator expressions:

# Python
(x + 1 for x in y if x > 100)

// JavaScript 1.8+
(x + 1 for (x in y) if (x > 100))

Generators

# Python
def simpleRange(n):
    for i in xrange(n):
        yield i

for n in simpleRange(5):
     print(n)


// JavaScript 1.7+
function simpleRange(n) {
    for (let i = 0; i < n; i++)
        yield i;
}

for (n in simpleRange(5))
    print(n);

List/Array comprehensions

# Python
[x + 1 for x in y if x > 100]

// JavaScript 1.7+
[x + 1 for (x in y) if (x > 100)]