behavior was changed compared to what ruby does withString#empty?to account for whitespaces classStringBLANK_RE=/\A[[:space:]]*\z/# A string is blank if it's empty or contains whitespaces only:## ''.blank? # =>
itselfis a method. It's value depends onwhatobject you use it on (in1.itself,1is the object) Hope that's helpful. Conclusion You have learned about Ruby self keyword, exactly what it is, why it's useful & how to use it. Now it's your turn to give it a try. Thanks for reading!
Instruct.error_loggerandInstruct.loggercan be set to any rubyLoggerclass. By default they are configured to log warn and error messages. Set theINSTRUCT_LOG_LEVELenvironment variable todebug,info,warn,error,fatal,unknownto change the the log level, or change the log level directly on the logger...
WhatWeb是基于ruby语言开发的,所有在安装该工具之前我们需要先安装rubygems与bundler。 gems && bundler 介绍 gems : RubyGems 是 Ruby 的一个包管理器,它提供一个分发 Ruby 程序和库的标准格式,还提供一个管理程序包安装的工具,它可以方便地管理 gem 安装的工具,以及用于分发 gem 的服务器。这类似于 Ubuntu ...
--log-object=FILE Log Ruby object inspection format. --log-mongo-database Name of the MongoDB database. --log-mongo-collection Name of the MongoDB collection. Default: whatweb. --log-mongo-host MongoDB hostname or IP address. Default: 0.0.0.0. --log-mongo-username MongoDB us...
--log-object=FILE Log Ruby object inspection format. --log-mongo-database Name of the MongoDB database. --log-mongo-collection Name of the MongoDB collection. Default: whatweb. --log-mongo-host MongoDB hostname or IP address. Default: 0.0.0.0. ...
This method is baked into Ruby's syntax, although its return value is rather special: It is the codepoint index in the string where the match occurred or nil otherwise. However, it is a wise choice to only use it for its truthy/falsey value and use the more self-explaining String#...
NotificationsYou must be signed in to change notification settings Fork0 Star1 master BranchesTags Code README MIT license Whatser Gem¶↑ The ‘Whatser API’ Gem is a simple Ruby / Rails wrapper for interacting with Whatser’s location-based web services (seedocs.sogeoapi.comfor more deta...
(y+"/"+x) } }.flatten.compact#nothing says pro-developer like using global variables$VERSION="0.4.8-dev"### 程序版本$WWDEBUG = false#raise exceptions in plugins, etc ### 是否开启调试模式$verbose=0#$VERBOSE is reserved in ruby ### 冗长模式,在ruby中是预留的$USE_EXAMPLE_URLS=false...
UUID/GUID columns are needed in the majority of replication cases. The IDs generated are difficult to guess. It can be produced independently of a database. A Ruby example is SecureRandom.uuid How do I get a 16-digit UUID? Just create your own UUID Generator API ...