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Get first three letters from every string in C#
The following are our strings in a list −
List<object> list = new List<object> { "keyboard", "mouse", "joystick", "monitor" };To use the first 3 letters, use substring method and use it under the Linq Select method.
IEnumerable<string> res = list.AsQueryable() .Cast<string>() .Select(str => str.Substring(0, 3));
Example
using System;
using System.Linq;
using System.Collections.Generic;
class Demo {
static void Main() {
List<object> list = new List<object> { "keyboard", "mouse", "joystick", "monitor" };
// getting first 3 letters from every string
IEnumerable<string> res = list.AsQueryable() .Cast<string>() .Select(str => str.Substring(0,3));
foreach (string str in res) {
Console.WriteLine(str);
}
}
}Output
key mou joy mon
Updated on: 23-Jun-2020
1K+ Views
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