Mega Code Archive
0421 TakeWhile
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Input: IEnumerable<TSource>
Lamdda expression: TSource => bool or (TSource,int) => bool
TakeWhile enumerates the input sequence, emitting each item, until the given predicate is false.
It then ignores the remaining elements:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
class Program
{
static void Main()
{
int[] numbers = { 3, 5, 2, 7, 4, 1 };
var takeWhileSmall = numbers.TakeWhile(n => n < 5);
foreach(int s in takeWhileSmall){
Console.WriteLine(s);
}
}
}
The output:
3
TakeWhile with lambda
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
class Program
{
static void Main()
{
string[] names = { "Java", "C#", "Javascript", "SQL", "Oracle", "Python", "C++", "C", "HTML", "CSS" };
IEnumerable<string> query = names.TakeWhile(n => n.Length < 5);
foreach(String s in query){
Console.WriteLine(s);
}
}
}
The output:
Java
C#
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