react emoji

Reprint Annotated Source:Address: http://www.lcode.orgThis article is from: "Jiang Qing's technical column"This react native explains the topic: mainly explains the react native development, the basic environment constructs the configuration introduction, the foundation, the advanced related explanation.Newly created React native Technology Exchange 1 Group (2826

Premise: MySQL database version can not be less than 5.5.The first method: Baidu a search a lot of, the main content is: Modify the MySQL configuration file (need to restart the database), modify the table and field encoding, are changed to UTF8MB4.The second method: Starting with JDBC, execute the Set names UTF8MB4 before each call to the database;Using the Druid Data source project, you can add Other data sources should also have similar configurations.The third method: re-encode the content t

Tags: encoding background error cell phone emoji expression column ECS Expression Pack serverJava background error, as follows. Aused by:java.sql.SQLException:Incorrect String value: ' \xf0\x9f\x98\x84 ' for column ' review ' at row 1 at Com.mysql. Jdbc. Sqlerror.createsqlexception (sqlerror.java:1074) at Com.mysql.jdbc.MysqlIO.checkErrorPacket (Mysqlio.java : 4096) at Com.mysql.jdbc.MysqlIO.checkErrorPacket (mysqlio.java:4028) at Com.mysql.jdbc.Mysql

Tags: mysqlObjective:The recently developed iOS project, because of the need for user text storage, naturally encountered an issue where emoticons such as emoji were supported by MySQL DB. Troubled for a few days, on the verge of desperate abandonment, finally completed the conversion and migration. In this special analysis and collation, convenient for more people. Problem Description:If the UTF8 character set is a Java server, when the store contain

When history is not added, clicking link back and forth will report the following error in the console:Warning: Hash history cannot push the same path; a new entry will not be added to the history stackThe solution is to install and use the history module.Import createbrowserhistory from "History/createbrowserhistory"; const customhistory = createbrowserhistory (); Note that the introduced hashrouter is changed to a router.How does a REACT project use

React native, through a flexbox layout engine, implements a consistent cross-platform style and layout across all mobile platforms. Main Properties Flex flexdirection alignself alignitems justifycontent flexwrap Properties explain Flex When an element defines a flex attribute, it means that the element is scalable (Flex has a property value greater than 0 to scale) and can be likened to the weight property in Android. Class Flexboxrea

React Native Project Common third-party components summary: react-native-animatable Animation React-native-carousel Carousel React-native-countdown Countdown React-native-device-info Device Information React-native-fileupload

Objective Recently in the background of a management system modified into mobile phone app, using React-native, the back end of the use of thinkphp 3.2.3. Originally used in the traditional thinkphp template tag rendering page, plus JS to achieve a set of management system, now need all mobile phone app, originally told me is for my practicing, but how do I feel that I was fooled ... Back to the point, because it is the first time to write this compon

How to make a emoji expression on a Mac? Apple's emoji expression is the first to be introduced and is undoubtedly the best of its kind. Another advantage of his is that there is no use of any tool software, is the system's own functions, support text editing and network applications, and can achieve fast input, see here I believe you will have a lot of interest. The following small compilation teaches ever

Tags: database brother LianProblem restoreWhen you use Erlang to store some special strings to MySQL , you can't read them. After checking, the binary format of these strings is as follows:What do you see in binary Unicode ? 14> unicode:characters_to_list ([128518,128528]15> erlang:integer_to_list (128518,16). Percent View Hex"1f606"16> erlang:integer_to_list (128528,16)."1f610"Obviously,1f606 and 1f610 exceed The expression range of the common Unicode string 0000-ffff . What do 1f606 and 1f

If the UTF8 character set is a Java server, when the store contains a emoji expression, it throws an exception similar to the following:Java.sql.SQLException:IncorrectStringValue' \xf0\x9f\x92\x94 'For column' Name ' at row1 at Com.mysql.jdbc.SQLError.createSQLException (Sqlerror.java:1073) at Com.mysql.jdbc.MysqlIO.checkErrorPacket (Mysqlio.java:3593" at Com.mysql.jdbc.MysqlIO.checkErrorPacket (Mysqlio.java: 3525) at Com.mysql.jdbc.MysqlIO.se

react-native-animatable Animation React-native-carousel Carousel React-native-countdown Countdown React-native-device-info Device Information React-native-fileupload File Upload React-native-icons icon

Handling emoji Expressions (Unicode) Available for Android and IOS /** * @brief kill emoji * @autho chenjinya@baidu.com * @param {string} $strText * @return {string} Removeemoji **/ static function Escapeemoji ($strText, $bool = False) { $preg = '/\\\ud ([8-9a-f][ 0-9A-Z]{2})/I '; if ($bool = = True) { $boolPregRes = (Preg_match ($preg, Json_encode ($strText, True)); return $

Label: Insert emoji expression in MySQL, error occurred: Java.sql.SQLException:Incorrect string value: ' \xf0\x9f\x98\x8a ' for column ' content ' at rowThe reason is that the current MySQL character set is Utf-8, up to 3 bytes, and the emoji expression takes 4 bytes to represent. So the insert error is caused.The general approach is to change the character set to UTF8MB42. Utf8mb4 such a char

Convert emoji to UTF8 and store to database, but inefficient1 Public functionRrr$text) {2 $text= ' A?? Ss?? Ss?? ss;3 //emoji symbols for handling names4 $tmpStr= Json_encode ($text);//exposing the Unicode5 6 $TMPSTR 1=Preg_replace_callback("# (\\\ue[0-9a-f]{3}) #i",function($a) {7 //var_dump ($a);8 return addslashes($a[1]);9 //return $a;T

Tags: http color ingest scene href character type data sdn1. First introduce the following commonly used character sets ASCII: United States Information Interchange standard coding; English and other Western European languages; single-byte encoding, 7-bit represents a character, a total of 128 characters. GBK: Double-byte, Chinese character code expansion specification; Chinese, Japanese and Korean characters, English, numerals, double-byte encoding, a total of 21,003 Chinese charac

MySQL does not show emoji expression or display?? , the reason is not explained here, directly to say the solution. (mainly modified UTF8MB4)1. Modify the table2. Modifying fieldsALTER TABLE ' table_name ' MODIFY COLUMN ' column_name ' varchar CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;3. CharSet when modifying client connectionsExample: In thinkphp, when you configure a link database parameter, ' db_charset ' = ' utf8mb4 'Do here, basically al

Why do you want to set the database charset to UTF8MB4? UTF8 used to be all the time? The answer is here: UTF8 for Internet interactions that do not use mobile devices, UTF8MB4 is suitable for the current mobile device Internet development, as mobile devices often have emoji (emoji) storage, which consumes 4 bytes of storage space, while UTF8 is 3 bytes, so that With 3 bytes to store 4 bytes of things, it i

Label:At first, the following phenomena were found: mysql>showvariableslike ' character% '; +--------------------------+---------------------------------------+ |variable_name |Value | +--------------------------+---------------------------------------+ |character_set_client |latin1 | |character_set_connection|latin1 | |character_set_database|latin1 | |character_set_filesystem|binary | |character_set_results |latin1 | |character_set_server|utf8mb4 | |character_set_system|utf8 | |characte

http://my.oschina.net/jiemachina/blog/189460Note that the replacement of these emoji is the standard expression characters, each expression is originally 2 bytes, replaced by a string, each expression becomes 12 characters, wasted a lot of space, but simple, do not need to write a map one by one corresponding;Turn the expression into a stringdef Filter_emoji (desstr,restr= "):‘‘‘Filter Emoticons‘‘‘TryCO = re.compile (U ' [\u00010000-\u0010ffff] ')Exce