with-statement

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Create a "with" block on several context managers? [duplicate]

This question already has answers here: Multiple variables in a 'with' statement? (8 answers) 开发者_C百科[详细]

2023-01-03 08:35 分类：问答
Javascript Sandbox

I want to have developers write some custom apps for a site in Javascript but I want to sandbox it so they can\'t do anything naughty like redirect the user, set the body display to none etc etc. I ha[详细]

2023-01-02 17:48 分类：问答
What's the advantage of using 'with .. as' statement in Python?

with open(\"hello.txt\", \"wb\") as f: f.write(\"Hello Python!\\n\") seems to be the same as f = open(\"hello.txt\", \"wb\")[详细]

2022-12-28 20:14 分类：问答
What does "with" do in JavaScript?

I saw JavaScript code which begins with with. That\'s a bit confusing. What does it do and how can it be used correctly?[详细]

2022-12-25 13:19 分类：问答
VB.NET Use With keyword on existing object?

Is it somehow possible to use the \'With\' keyword on an existing object? I would like to do the following using LINQ to objects and can\'t seem to find a way:开发者_运维问答[详细]

2022-12-24 05:52 分类：问答
Does C++ have "with" keyword like Pascal?

with keyword in Pascal can be use to quick access the field of a record. Anybody knows if C++ has anything similar to开发者_运维问答 that?[详细]

2022-12-20 21:25 分类：问答
VB.NET 'With' statement performance?

What\'s the performance consequence using the \'With\' keyword i开发者_运维技巧n vb.net instead of using reusing the instance name over and over?Assuming that you\'re comparing it to a local variable[详细]

2022-12-16 09:09 分类：问答
Nesting 'WITH' statements in Python

It turns out that \"with\" is a funny word to s开发者_运维技巧earch for on the internet. Does anyone knows what the deal is with nesting with statements in python?[详细]

2022-12-15 10:36 分类：问答
with statement - backport for Python 2.5

I\'d like to use with 开发者_如何学JAVAstatement in Python 2.5 in some production code. It was backported, should I expect any problems (e.g. with availability/compatibility on other machines/etc)?[详细]

2022-12-14 00:36 分类：问答
Any examples of a non-trivial and useful example of the 'with' keyword?

I still find the with keyword a bit...enigmatic. Briefly, with behaves like this: with (obj) { // do stuff[详细]

2022-12-10 01:55 分类：问答