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Groovy: what's the purpose of “def” in “def x = 0”?
In the following piece of code (taken from the Groovy Semantics Manual page ), why prefix the assignment with the keyword def ?
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What's the difference between an exclusive lock and a shared lock?
According to wikipedia,
4 Answers
4
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How to create NSIndexPath for TableView
I need delete row 1 of a table in a function I have defined. In order to use deleteRowAtIndexPath you must use an IndexPath with a section and row defined. How can I create an indexpath like this?
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How can I pad an int with leading zeros when using cout
I want cout to output an int with leading zeros, so the value 1 would be printed as 001 and the value 25 printed as 025 . How can I do this?
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
Why do comparisons of NaN values behave differently from all other values?
That is, all comparisons with the operators ==, =, where one or both values is NaN returns false, contrary to the behaviour of all other values.
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Why do we need argc while there is always a null at the end of argv?
It seems that the argv[argc] is always NULL , so I think we can traverse the argument list without argc . A single while loop will do this.
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Change text from “Submit” on input tag
I have a tag, <input type="submit" class="like"/> .
I want to have the text inside the button say "Like", but right now, it says "Submit".
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Python : List of dict, if exists increment a dict value, if not append a new dict
I would like do something like that.
6 Answers
6
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How to completely remove borders from HTML table
My goal is to make an HTML page that is similar to a "photo frame". In other words, I want to make a blank page that is surrounded by 4 pictures.
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