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How to preserve insertion order in HashMap? [duplicate]
I'm using a HashMap . When I iterate over the map, the data is returned in (often the same) random order. But the data was inserted in a specific order, and I need to preserve the insertion order. How can I do this?
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“while :” vs. “while true” [duplicate]
...hen you look at how infinite loops should be implemented, you mostly see this approach:
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What is the Python equivalent for a case/switch statement? [duplicate]
I'd like to know, is there a Python equivalent for the case statement such as the examples available on VB.net or C#?
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slim dynamic conditional class [closed]
Just to help other developers, because there is no similar question on SO.
3 Answers
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Delete a dictionary item if the key exists [duplicate]
Is there any other way to delete an item in a dictionary only if the given key exists, other than:
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What is the .idea folder?
...ate a project in JetBrains WebStorm, a folder called .idea gets created. Is it okay if I delete it? Will it affect my project?
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What does -z mean in Bash? [duplicate]
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-z string True if the string is null (an empty string)
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AngularJS app.run() documentation?
How and where is app.run() used? After module definition, after app.config() or after app.controller() ?
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Why doesn't delete set the pointer to NULL?
...lways wondered why automatic setting of the pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:
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Referring to a Column Alias in a WHERE Clause
... in the WHERE clause. (Think of it as the entire SELECT including aliases, is applied after the WHERE clause.)
But, as mentioned in other answers, you can force SQL to treat SELECT to be handled before the WHERE clause. This is usually done with parenthesis to force logical order of operation or wi...