大约有 40,000 项符合查询结果(耗时:0.0473秒) [XML]

https://stackoverflow.com/ques... 

Better way to set distance between flexbox items

...ox doesn't have collapsing margins. Flexbox doesn't have anything akin to border-spacing for tables (except for CSS property gap which isn't supported in Safari, caniuse) Therefore achieving what you are asking for is a bit more difficult. In my experience, the "cleanest" way that doesn't use :firs...
https://stackoverflow.com/ques... 

What tools are there for functional programming in C?

...unctions, any program (even if all its functions are 'pure') will be lower-order (in the information theory sense) than its equivalent with first-class functions. In my view, it is this declarative style only possible with first-class functions that is the main benefit of FP. I think you be doing so...
https://stackoverflow.com/ques... 

__FILE__ macro shows full path

...antage of giving the C file name to the header too. The change was made in order to get reproducible builds. So with gcc with -O2, would the string be indeed optimized and the build made reproducible? – Paul Stelian Dec 4 '19 at 15:34 ...
https://stackoverflow.com/ques... 

Why is arr = [] faster than arr = new Array?

...ur code. No need to invoke constructors directly or maintain the correct order of arguments passed to functions, etc. http://www.dyn-web.com/tutorials/obj_lit.php share | improve this answer ...
https://stackoverflow.com/ques... 

How to use enum values in f:selectItem(s)

...ble to make the f:selectItem more flexible considering what happens if the order of the enums changes, and if the list was large? And could I do this better? And is it possible to automatically "select" the item that the question have? ...
https://stackoverflow.com/ques... 

Capture Signature using HTML5 and iPad

...es and how well it looks. One note about using it which helped me: add a border to the canvas so you can see how it is being adjusted. Also note that css changes to the canvas do some crazy things, so just specify a height and width in the canvas element if this get out of control. ...
https://stackoverflow.com/ques... 

Saving timestamp in mysql table using php

...If so mysql expects the format to be Year-month-day Hour:minute:second. In order to save the timestamp you will have to convert the field to numeric using a query like alter table <table_name> change <field> <field> bigint unsigned If you are using the current time you can use n...
https://stackoverflow.com/ques... 

What's the difference between IQueryable and IEnumerable

... code), which an IQueryProvider must explore/interpret/compile/whatever in order to generate results. Having a query expression gives two advantages. The first advantage is optimization. Because modifiers like 'Where' are included in the query expression, the IQueryProvider can apply otherwise imp...
https://stackoverflow.com/ques... 

Android - Handle “Enter” in an EditText

... It's usually better to perform actions on KeyEvent.ACTION_UP. In order for this to work, you need to first consume the ACTION_DOWN event: if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_DOWN) { return true; }. Then you can check for the ACTION_UP event a...
https://stackoverflow.com/ques... 

How to tell git to use the correct identity (name and email) for a given project?

...cting to have multiple local repositories for the same project, notably in order to switch between branches more easily without having to recompile everything. Maybe it's just a bad svn habit. Thanks. – Martin Jambon May 24 '11 at 20:50 ...