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comparison docs/rendered/_sources/pymonkey.txt @ 57:a2b617731398

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pymonkey.undefined now has a 'falsy' value.
author Atul Varma <varmaa@toolness.com>
date Fri, 10 Jul 2009 18:41:14 -0700
parents 72e84bd75905
children 7a3461ccaf1d
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56:72e84bd75905 57:a2b617731398
23 (JavaScript's ``null`` is mapped to Python's ``None`` object). 23 (JavaScript's ``null`` is mapped to Python's ``None`` object).
24 For instance: 24 For instance:
25 25
26 >>> cx = pymonkey.Runtime().new_context() 26 >>> cx = pymonkey.Runtime().new_context()
27 >>> cx.evaluate_script(cx.new_object(), '', '<string>', 1) 27 >>> cx.evaluate_script(cx.new_object(), '', '<string>', 1)
28 <type 'pymonkey.undefined'> 28 pymonkey.undefined
29 29
30 Unfortunately, this object currently does not have a "falsy" value, 30 This object also has a "falsy" value:
31 e.g.:
32 31
33 >>> if pymonkey.undefined: 32 >>> if not pymonkey.undefined:
34 ... print 'Huh, this is kind of unintuitive.' 33 ... print "See, it's falsy!"
35 Huh, this is kind of unintuitive. 34 See, it's falsy!
36
37 The reason for this is simply that we don't currently know how to
38 make this object have a falsy value, if it's even possible.
39 35
40 .. class:: Object 36 .. class:: Object
41 37
42 This is the type of JavaScript objects. Such objects can only be 38 This is the type of JavaScript objects. Such objects can only be
43 created via Pymonkey calls like :meth:`Context.new_object()` or 39 created via Pymonkey calls like :meth:`Context.new_object()` or