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Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted
...age collector. It uses reference counting to manage memory. Thus, the most common source of memory leaks are cyclic references and global variables. If you use a framework, you'll have a lot of code to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to mem...
In vim, how do I go back to where I was before a search?
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91
Use `` to jump back to the exact position you were in before you searched/jumped, or '' to jump...
Painless way to install a new version of R?
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Just for completeness, there are some ways to prevent you from having this problem. As Dirk said, save your packages in another directory on your computer.
install.packages("thepackage",lib="/path/to/directory/with/libraries")
You...
HashSet vs LinkedHashSet
...t -------------
size add contains iterate
10 308 91 94
100 178 75 73
1000 216 110 72
10000 711 215 100
---------- LinkedHashSet ----------
size add contains iterate
10 350 65 ...
center aligning a fixed position div
... This helped me out with a RWD project :)
– tctc91
Jan 21 '13 at 15:32
6
where do these 37.5...
Remove all the elements that occur in one list from another
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Python has a language feature called List Comprehensions that is perfectly suited to making this sort of thing extremely easy. The following statement does exactly what you want and stores the result in l3:
l3 = [x for x in l1 if x not in l2]
l3 will contain [1, 6...
Are there any smart cases of runtime code modification?
...rating code at run time can be useful for:
Some virtual machines use JIT compilation to improve performance.
Generating specialized functions on the fly has long been common in computer graphics. See e.g. Rob Pike and Bart Locanthi and John Reiser Hardware Software Tradeoffs for Bitmap Graphics on...
Easiest way to convert a List to a Set in Java
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Vitalii FedorenkoVitalii Fedorenko
91.6k2424 gold badges140140 silver badges111111 bronze badges
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What is the difference between call and apply?
...rameters be listed explicitly. A useful mnemonic is "A for array and C for comma."
See MDN's documentation on apply and call.
Pseudo syntax:
theFunction.apply(valueForThis, arrayOfArgs)
theFunction.call(valueForThis, arg1, arg2, ...)
There is also, as of ES6, the possibility to spread the array...
How can I let a table's body scroll but keep its head fixed in place?
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I had to find the same answer. The best example I found is http://www.cssplay.co.uk/menu/tablescroll.html - I found example #2 worked well for me. You will have to set the height of the inner table with Java Script, the rest is CSS.
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