C++ STL provides template specializations of std::hash for the various string classes. You could just specify std::string as key type for std::unordered_map: #include <string> #include <unordered_map> int main() { std::unordered_map<std::string, int> map; map[“string”] = 10; return 0; }
map( { (.name|tostring): . } ) | add (The tostring is for safety/robustness.) INDEX/1 If your jq has INDEX/1 (introduced after the release of version 1.5), you can simply write: INDEX(.name)
If you have an array of keys that you want to use then use array_combine Given $keys = array(‘a’, ‘b’, ‘c’, …) and your array, $list, then do this: $list = array_combine($keys, array_values($list)); List will now be array(‘a’ => ‘blabla 1’, …) etc. You have to use array_values to extract just the values from the … Read more
I suggest using underscore.js (or better, lo-dash) extend: _.extend(destination, *sources) Copy all of the properties in the source objects over to the destination object, and return the destination object. It’s in-order, so the last source will override properties of the same name in previous arguments. _.extend({name: ‘moe’}, {age: 50}); => {name: ‘moe’, age: 50}
The command to add a primary key in a migration is: add_column :my_table, :id, :primary_key However, the wording of your question suggests that your table already has an auto-increment column. Unless I’m mistaken, there are several DBMS that do not allow more than one auto-increment column on a table. If you DO already have an … Read more
I figured it out myself. I first group by .component and then just create new lists of ips that are indexed by the component of the first object of each group: jq ‘ group_by(.component)[] | {(.[0].component): [.[] | .ip]}’
Figured it out by testing all the stuff by myself. Couldn’t find any topics about it tho, so I’ll just leave the solution here. This might not be the only or even the best solution, but it works for my purposes (within getch’s limits) and is better than nothing. Note: proper keyDown() which would recognize … Read more
std::map will sort its elements by keys. It doesn’t care about the values when sorting. You can use std::vector<std::pair<K,V>> then sort it using std::sort followed by std::stable_sort: std::vector<std::pair<K,V>> items; //fill items //sort by value using std::sort std::sort(items.begin(), items.end(), value_comparer); //sort by key using std::stable_sort std::stable_sort(items.begin(), items.end(), key_comparer); The first sort should use std::sort since it … Read more
You can sort the keys and then create an NSMutableArray by iterating over them. NSArray *sortedKeys = [[dict allKeys] sortedArrayUsingSelector: @selector(compare:)]; NSMutableArray *sortedValues = [NSMutableArray array]; for (NSString *key in sortedKeys) [sortedValues addObject: [dict objectForKey: key]];
Using build.gradle buildTypes { debug { buildConfigField(“String”, “map_api_key”, “\”your debug map api key here\””) } release { buildConfigField(“String”, “map_api_key”, “\”your release map api key here\””) } } I solved this issue using this steps: In Google Developer API Console Click on Create New Android key… In cmd.exe/Terminal: keytool -list -v -keystore mystore.keystore Password: android Now … Read more