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Android ListView headers

...ion. Android will then take care of passing you the right type of View in convertView automatically. Here what the result of the code below looks like: First we have an interface that our two list item types will implement public interface Item { public int getViewType(); public Vie...
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Are Exceptions in C++ really slow

... You can never claim about performance unless you convert the code to the assembly or benchmark it. Here is what you see: (quick-bench) The error code is not sensitive to the percentage of occurrence. Exceptions have a little bit overhead as long as they are never thrown. ...
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push multiple elements to array

... This answer and the selected answer produce different, and perhaps unexpected, results. a.push(1) vs. a.push([1]) – oevna Dec 24 '16 at 1:12 ...
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How to enable or disable an anchor using jQuery?

... Selected Answer is not good. Use pointer-events CSS style. (As Rashad Annara suggested) See MDN https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events. Its supported in most browsers. Simple adding "disabled" attr...
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Does static constexpr variable inside a function make sense?

...s used in runtime contexts (in other words, the constexpr would need to be converted to const implicitly, and available with a physical address for runtime code) it will want static to ensure ODR compliance, etc. That is my understanding, at least. – void.pointer ...
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Remove Primary Key in MySQL

... an index such that it is possible to perform the equivalent of an indexed SELECT MAX(ai_col) lookup on the table to obtain the maximum column value. Typically, this is achieved by making the column the first column of some table index. – Quassnoi Sep 23 '13 at...
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What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?

... This is a very good solution for drawer selection and fragmentTransaction – Gonçalo May 26 '15 at 14:48 ...
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How can I see what has changed in a file before committing to git?

...t add -p is a combination of staging, seeing the changes you can stage and selecting them one by one in an interactive manner. See Commit only part of a file in Git for more on git add -p. – Angelos Asonitis Apr 7 '19 at 12:50 ...
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Removing pip's cache?

...urge removes all the wheel files in the cache. pip cache remove matplotlib selectively removes files related to a matplotlib from the cache. In summary, pip provides a lot of ways to tweak how it uses the cache: pip install --no-cache-dir <package>: install a package without using the cache...
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MVC 4 Razor File Upload

...tring(); } else { ViewBag.Message = "Please select file"; } return View(); } Hope it help. share | improve this answer | follow...