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JS - get image width and height from the base64 code
...ve a base64 img encoded that you can find here . How can I get the height and the width of it?
4 Answers
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C++ Object Instantiation
I'm a C programmer trying to understand C++. Many tutorials demonstrate object instantiation using a snippet such as:
9 An...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...ND_ROWS?
Just a quick summary: Peter says that it depends on your indexes and other factors. Many of the comments to the post seem to say that SQL_CALC_FOUND_ROWS is almost always slower - sometimes up to 10x slower - than running two queries.
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How do CUDA blocks/warps/threads map onto CUDA cores?
...ns.
The programmer divides work into threads, threads into thread blocks, and thread blocks into grids. The compute work distributor allocates thread blocks to Streaming Multiprocessors (SMs). Once a thread block is distributed to a SM the resources for the thread block are allocated (warps and sha...
Paste a multi-line Java String in Eclipse [duplicate]
...ter enabling the feature you still have to first write two quotation marks and then paste the text inside those marks.
– Lycha
Jul 29 '10 at 13:18
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What's the most efficient way to erase duplicates and sort a vector?
...to take a C++ vector with potentially a lot of elements, erase duplicates, and sort it.
23 Answers
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What's the difference between lapply and do.call?
I'm learning R recently and confused by two function: lapply and do.call . It seems that they're just similar to map function in Lisp. But why are there two functions with such a different name? Why doesn't R just use a function called map ?
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String difference in Bash
.... I could easily do this with diff or comm, but I'm not dealing with files and I'd prefer not to output them to files, do the compare and read it back.
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Difference between “module.exports” and “exports” in the CommonJs Module System
...ariables to the same object, they are all the same object; so then exports and module.exports are the same object.
But if you set exports to something new, it will no longer be set to module.exports, so exports and module.exports are no longer the same object.
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Shall we always use [unowned self] inside closure in Swift
In WWDC 2014 session 403 Intermediate Swift and transcript , there was the following slide
9 Answers
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