How to concatenate string in Swift? In Objective-C we do like NSString *string = @”Swift”; NSString *resultStr = [string stringByAppendingString:@” is a new Programming Language”]; or NSString *resultStr=[NSString stringWithFormat:@”%@ is a new Programming Language”,string]; But I want to do this in Swift-language. 21 Answers 21
I have following data in my table “devices” affiliate_name affiliate_location model ip os_type os_version cs1 inter Dell 10.125.103.25 Linux Fedora cs2 inter Dell 10.125.103.26 Linux Fedora cs3 inter Dell 10.125.103.27 NULL NULL cs4 inter Dell 10.125.103.28 NULL NULL I executed below query SELECT CONCAT(`affiliate_name`,’-‘,`model`,’-‘,`ip`,’-‘,`os_type`,’-‘,`os_version`) AS device_name FROM devices It returns result given below cs1-Dell-10.125.103.25-Linux-Fedora cs2-Dell-10.125.103.26-Linux-Fedora … Read more
I am using MySQL and MySQL Workbench 5.2 CE. When I try to concatenate 2 columns, last_name and first_name, it doesn’t work : select first_name + last_name as “Name” from test.student 5 Answers 5
I have a list of Pandas dataframes that I would like to combine into one Pandas dataframe. I am using Python 2.7.10 and Pandas 0.16.2 I created the list of dataframes from: import pandas as pd dfs = [] sqlall = “select * from mytable” for chunk in pd.read_sql_query(sqlall , cnxn, chunksize=10000): dfs.append(chunk) This returns … Read more
I have the following dataframes: > df1 id begin conditional confidence discoveryTechnique 0 278 56 false 0.0 1 1 421 18 false 0.0 1 > df2 concept 0 A 1 B How do I merge on the indices to get: id begin conditional confidence discoveryTechnique concept 0 278 56 false 0.0 1 A 1 421 … Read more
Using MySQL, I can do something like: SELECT hobbies FROM peoples_hobbies WHERE person_id = 5; My Output: shopping fishing coding but instead I just want 1 row, 1 col: Expected Output: shopping, fishing, coding The reason is that I’m selecting multiple values from multiple tables, and after all the joins I’ve got a lot more … Read more
In PHP, strings are concatenated together as follows: $foo = “Hello”; $foo .= ” World”; Here, $foo becomes “Hello World”. How is this accomplished in Bash? 30 30 foo=”Hello” foo=”${foo} World” echo “${foo}” > Hello World In general to concatenate two variables you can just write them one after another: a=”Hello” b=’World’ c=”${a} ${b}” echo … Read more
