My previous article, 'We do not need the string types' caused a lot of controversy, feedback brought many different perspectives, we usually think of type string is a useful feature. After more research, I can confirm that a thing: Most of the string type implementation are flawed. We have kind of illusion: the string can handle much more than provide its own functionality. We use it, New Nike Free Run 3 Shoes Women Navy Womens and did not go into whether it reliable. This will lead to the use of these strings of programming problems with the program, especially on international issues. In most cases, if we are not dependent on string type, we can do better (to avoid these problems). I measure the achievement of the string investigated a bit string in the performance of some common situations. I will elaborate on various occasions, the expected return and some of the actual return value. I originally Air Max 2012 Black Red White wanted to use a table Air Jordan Outlet to show these different results, but the language of performance Nike Zoom Lunarposite all the tests are bad, so this comparison lacks significance. noel When I use a code for the 'noe \\ u0308l' the unicode string represents 'noel', I tested the following: whether to print correctly? Yes, most of the language can correctly handle this print. But ideone.com deal with some questions on this issue (so you should test carefully string type). What is the value of the string reversal? 'L' eon ', right? Most Air Max 2011 Yellow Black Dark Grey languages handle failure. The 2015 Nike Free 5.0 results obtained are usually' leon '(double quotation marks in the 'I', instead of 'e' on). Since there is no specific strings processing category, merely a coded character arrays were reversed. What is the first three characters? majority language to get the 'noe', this and expected 'no' e 'is different. Which may lead to major problems in determining the character, I think most people do not want to get this result. This again shows that the string type is just as coding element of the array processing. String length? Returns are basically 5. Once again, the show string type just Nike Zoom KD V think of it as an array of treatment, rather than true text string. These problems described above, imagine you are your favorite text editor to write what these phenomenon. I expect ''e' is treated as a character to deal with. I do not like when I rollback / delete operation, only removed some of its character. I want to copy the first three characters of the time it should be included 'e' on the double points □□. (Annotation: 653642-400 Blue Orange Lebron James Mens Basketball Shoes Nike Zoom Soldier VIII 8 Due to WordPress system, in subtitled original expression can not be displayed at the site, so simply replaced with two □) The above character in unicode code is relatively rare, the display shows two cats (I hope you have the relevant font - If you do not see, then, New Nike Free 5.0 V4 Shoes Grey Black when the above title a happy cat and a happy cat, is part of the expression unicode character) singled out because of the character above these characters in the Basic Multilingual outside (BMP). And New Nike Free Run 3 Shoes Women Grey Purple Womens this will lead to those languages in UTF-16 character Nike Air Max encoding problem (Java, C #, JavaScript) length? Python returns the correct use unicode 2, UTF-16 other languages Returns 4: These characters need to use the character Agent minus what the first character is correct Python return sad cat face, other UTF-16 language returned half an invalid character and sad character cat character reversal .Python returned.?. normal cat face, other UTF-16 language returns an error string, in ideone I may have found a flaw in C #, it did not even return garbled, but nothing is output. ([ideone defect]) Other Use language string library, such as C ++, perl and Python2 string library also handle failure. They all assume that just an array of characters, while ignoring the unicode character encoding .Python3 used as a built-in encoder, it addresses the issue .Perl Use UTF-8 mode can handle two cats right, but in the previous example, but processing fails ('no' el 'string). This string contains a baffle superimposed character, 'ffl' is a single Unicode character, exists primarily for compatibility. But this can be a good example to test the character conversion. What is conversion case generated? I did not find a language of print is not 'BAfflE'. Please note here the superimposition of characters or to maintain the lowercase, and the expected value should be 'BAFFLE'. Unicod there is a special case conversion: This character is treated as a superposition of three coding elements. Since there New Nike Tr Fit Shoes Black Purple is no quasi keep this additional rule, language processing uppercase conversion function leads to an interesting phenomenon: the strings are uppercase lowercase characters remain. Re-test no 'el let us test different combinations of the same character on two logical where' no 'el' using prefabricated characters '' e '. Prebuilt string is string equality and non-pre-configuration ? All tests were a failure. But some language provides a Unicode standardized libraries. In these languages, standardization resulting string is equal .JavaScript no such libraries, which looks a little surprised, because it is a Door to prepare specifically for the UI language, which requires processing Unicode encoding. Although one would think that these standardization process and string operations not typical basic characters, but these basic operations are included in New Nike Free 5.0 V4 Shoes Black Blue the word-processing, if the contents are not included , then what is the purpose we need to string it? string flawed Air Jordan 14 Grey Red Womens I expect you to test your common language. If you work with relevant international, then it is important to you, you need to know your string type how to work. Once you test, you will realize exactly how the string type process. In my opinion these implementations are flawed. I admit that these questions are not obvious, string processing is a complex theme, but the minimum we should include the relevant character set (some string type provides functions related functions, such as Perl's GCString). But this is not the scope of this article. But this is a good correlation string . Type I view the aforementioned article is even more profound I prefer to use an array of characters instead of a defective string type array of characters I would not assume there will Womens Nike Kobe VIII be some bad return: test above results are returned for an array of characters It is logical and reasonable. In fact, if you use unicode character array, then the test results will be better than those languages achieve string type. flawedstring type