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Logic
and isEmpty not or cond ifElse allPass anyPass defaultTo both complement either propSatisfies and a → b → a | b Added in v0.1.0 Returns the first argument if it ... -
4.11 Combine words into a comma-separated phrase
When you want to output a character vector for humans to read (e.g., x <- c("apple", "banana", "cherry") ), you probably do not want something like [1] "apple" "banana" "cherry" ,... -
第五章：synchronized关键字
学习目标 1. 对象锁与类锁的概念 1.1 对象锁（实例锁） 1.2 类锁（静态锁） 1.3 对象锁与类锁的对比 2. synchronized修饰方法与代码块的区别 2.1 修饰方法 vs 修饰代码块 2.2 不同锁对象的选择 3. synchronized的底层实现原理 3.1 Monitor监视器 3.2 字节码层面的实现 3.3 ... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
Auxiliary SQL Functions
Kyuubi provides several auxiliary SQL functions as supplement to Flink’s Built-in Functions Name Description Return Type Since kyuubi_version Return the version of K... -
InfluxDB
Description Key features Options url database [string] measurement [string] username [string] password [string] key_time [string] key_tags [array] batch_size [int] max_re... -
Avro format
How To Use Kafka uses example Avro is very popular in streaming data pipeline. Now seatunnel supports Avro format in kafka connector. How To Use Kafka uses example This is a... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
Object
clone values eqProps keys omit pick pickAll project prop props keysIn path valuesIn clone {*} → {*} Parameters valueThe object or array to clone Returns * A d... -
Configuring SAM and Schema Registry Metadata Stores in MySQL
Steps Steps Launch the MySQL monitor: mysql - u root - p Create the database for Schema Registry and SAM metastore: create database registry ; create database str...
