I have a feeling you are looping in the view with something like <%= posts.each do |post| %> if you remove the = such as <% posts.each do |post| %> the data will no longer be displayed. In very simplified terms: <%= means display this data. each will return the original object so you are … Read more
1. Symbolize keys These hashes are not equal because the keys are not equal. If you want to compare the values, no matter whether the keys are strings or symbols you can just transform the keys using to_sym. (Note that this will not transform nested keys). first_hash.transform_keys(&:to_sym) == second_hash.transform_keys(&:to_sym) 2. Compare as JSON (NOT RECOMMENDED) … Read more
What do you think of the above expression for email validation. For one, it doesn’t accept my address. So, there’s obviously a bug in there somewhere. I suggest you read RfC5322 carefully, it describes the valid syntax for addresses quite clearly, although unfortunately it hasn’t yet been updated for IDN. solved Email Regex. Is this … Read more
(Oh you mean IRB) If you enter something that will be on multiple lines, ruby will wait until the final end is completed before running the code: irb(main):001:0> def dostuff irb(main):002:1> puts “things” irb(main):003:1> end => :dostuff irb(main):004:0> dostuff things => nil irb(main):005:0> As you can see the number at the prompt changes depending on … Read more
Add //= require_self to application.js this includes its own file contents too. This has to be done explicitly. also keep the application.js formatted //= require jquery //= require jquery_ujs //= require bootstrap //= require bootstrap-datepicker //= require picker //= require_tree . //= require_self $(function() { $(‘#dp5’).datepicker() }); // Do not keep bank spaces between included … Read more
Try this: a.gsub!(/(\W|\d)/, “”) => “ABC” b.gsub!(/(\W|\d)/, “”) => “JE” 1 solved regex for collect letter inside string ruby [closed]
Your code compares adjacent elements x and y, but pushes x and y only if they are the first elements in the array (if z == 0; newarray.insert(0, x, y)). Otherwise, only y is pushed, so the first element of each group of consecutive integers is missing. This table illustrates what’s going on: x y … Read more
What you need is hash and not string. You can use it like this, hash = {id: 2} User.where(hash) And if you really want to use string you can do it like this, string = “id = 2” User.where(string) If you want to execute the string you can use eval. In that case it will … Read more
Use regex and string.gsub() 2.0.0-p643 :004 > “xxxxxxx#code#xxxxxxxx”.gsub(/\#code#/i, “#NEWCODE#”) => “xxxxxxx#NEWCODE#xxxxxxxx” solved How to replace special text in a string in Ruby? [closed]
Probably libmysqlclient is not installed in your system. Install it by using this command: sudo apt-get install libmysqlclient-dev Cheers! solved Getting errors when running Rails server with MySQL
class User belongs_to :lives, class_name: ‘Loca’, foreign_key: ‘lives_location’ belongs_to :works, class_name: ‘Loca’, foreign_key: ‘works_location’ … end class Loca has_many :users … end 1 solved Ruby on Rails having more than 1 different column foreign keyed to same table
There’s probably a better way to do this using regexes, but here’s what I came up with: a.split(/[^(]*\(([^)]+)\)[^(]*/).reject(&:empty?) 0 solved Get array of matching strings
def string_gen(length.to_i) chars = %w(a b c d e f g h i j k l m n o p q r s t u w x y z) random_string = chars.to_a[rand(chars.length)].join puts random_string end string_gen(6) #<= “jahsyd” If you want to do it more then one time add a .times loop: def string_gen(length.to_i) chars … Read more
Python: print (“{0:5s} {1:7s} {2:9s} {3:6s} {4:25s} {5:s}”.format(‘Rank’, ‘Points’, ‘Comments’, ‘Hours’, ‘Sub’, ‘Link’)) Ruby: puts “%-5s %-7s %-9s %-6s %-25s %-5s” % [‘Rank’, ‘Points’, ‘Comments’, ‘Hours’, ‘Sub’, ‘Link’] Alternatively: puts sprintf(“%-5s %-7s %-9s %-6s %-25s %-5s”, *[‘Rank’, ‘Points’, ‘Comments’, ‘Hours’, ‘Sub’, ‘Link’]) 1 solved What would the ruby equivalent be to this python script?
Lua programming language is awesome for creating Android and iPhone Apps, You can Check this Corona SDK, Corona SDK is awesome and simple to use for creating Android and iPhone Apps, And for web apps Ruby is awesome for web Apps and You can See PHP too. I hope that I helped you. 🙂 6 … Read more