[ad_1] map does a delayed execution, so when you cast the result to a list, the map is executed, which amounts in computing sum(1), sum(2), sum(-3) and sum(4) Any of those will fail because sum takes something like a list (an iterable object) in input. You pass integers which are not iterable, hence the error … Read more
[ad_1] Absolutely there is. You can use a parameter directly in your route. Even further, you can then use that parameter directly in your query, rather than using a case statement. #routes.rb get ‘suggestions/:type’, to: ‘suggestions#index’ # suggestions_controller.rb def index @suggestions = Suggestion.where(suggestion_type: params[:type]) end It’s always a better practice to base your controller actions … Read more
[ad_1] Ideally you should try the steps 2 and 3 and come to SO when you are stuck with an issue and you can’t find an answer. For now, I will give you my approach – Just a pseudocode: for(int i=0;i<arr.length;i++) { Map<Character,Integer> temp = hm; for(Character c : arr[i].toCharArray()) { if(!temp.containsKey(c) or temp[c]<=0) break … Read more
[ad_1] Try this code it will help you: (^[A-Z][a-z]{2,}_[A-Z][a-z]{2,}) using System; using System.Text.RegularExpressions; public class Example { public static void Main() { string pattern = @”(^[A-Z][a-z]{2,}_[A-Z][a-z]{2,})”; string input = @”Firstname_Lastname fi_na Fi_na fi_Na Fir_Name Firs_name firs_Name”; RegexOptions options = RegexOptions.Multiline; foreach (Match m in Regex.Matches(input, pattern, options)) { Console.WriteLine(“‘{0}’ found at index {1}.”, m.Value, m.Index); … Read more
[ad_1] You may try the following: let numArray = [1, 2, 3, 3, 4, 5, 5] // Group by value let grouped = Dictionary(grouping: numArray, by: { $0 }) // Filter by its count, convert back to Array and sort let unique = Array(grouped.filter { $1.count == 1 }.map(\.key)).sorted() print(unique) // [1, 2, 4] Here … Read more
[ad_1] Your question is unclear, but I think I know what you want to accomplish. Before your foreach you need to check the products count. If products are found, then loop them, if not, display a message. Try this: @if(count($data[‘products’])) @foreach ($data[‘products’] as $list) <div class=”col-6 col-md-4 tt-col-item”> <div class=”tt-product thumbprod-center”> <div class=”tt-description”> <div class=”tt-row”> … Read more
[ad_1] You can use least(): least(sum(case when type=”A” then cost else -cost end) * 0.08, 300) as AMY If the sum() exceeds 300, then the return value is 300. You can use greatest() if you want to impose a minimum. So, this would ensure that the value is between -300 and 300: greatest(least(sum(case when type=”A” … Read more
[ad_1] var x = 5; // x = 5 x *= 2; // multiply x with 2 (x = 10) console.log(++x); // console.log x plus 1 (11) A more common way of using this syntax is with plus or minus: x += 1; // is a shorthand for x = x + 1; x *= … Read more
[ad_1] Try adding adding an if parameter to check if its the desired item that your looking for, then just record all of its information. import json with open(‘elements.json’) as f: data = json.load(f) choice = input(“Choose element: “) for element in data[‘Elements’]: if element[‘name’] == choice: for x, y in element.items(): print(x.title() + “-> … Read more
[ad_1] Input function receives string as argument. String needs to passed on double quotes. If you’re not using double quotes, it will be treated as variable. So use myName = input() or myName = input(“Enter your name”) While running system will ask for the input at that time you can enter your name 0 [ad_2] … Read more
[ad_1] I would personally generate a string and keep adding random number values to the end, as most number types would not have as many digits as you would like. string Number = “0.”; Random rand = new Random(); for (int i = 0;i < 20;i++) { Number += rand.Next(0,10); } [ad_2] solved c# How … Read more
[ad_1] C++: What is best way to destruct this code? You mean to free resources. In case of unordered_map The way to do it right is not to do it. A unordered_map will automatically release resources when it’s destroyed for anything allocated automatically. Unless you allocated the values with new, you don’t delete them. In … Read more
[ad_1] Visual Studio 2015 doesn’t support the C++17 standard. Prior to C++17 standard you can’t have the std::shared_ptr<T[]> pointer. But even in C++17 the std::make_shared function doesn’t support array types so you would have to use the boost::make_shared instead. Another alternative is to use the unique pointer in combination with the std::make_unique which does support … Read more
[ad_1] On your class DVDPlayer you chose to say that a regular DVDPlayer cannot record. So you set it to false. If you want it to record you either change the variable directly, like you did on the class DVDPlayerTestDrive. The boolean canRecord = false is only meant to show you that it is possible … Read more
[ad_1] $(“#num”).on(“keyup”,function(){ if($(this).val()>5) alert(“The number entered is greater than 5″); }); <script src=”https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js”></script> <input id=”num” type=”number” value=”click”/> 5 [ad_2] solved If number entered > 5 then show message using JQuery [closed]