C#•2y ago

LINQ Help

bool IsSmooth(string input)
{
    var inputWords = input.Split();

    bool allCharsMatch = true;
    for (int i = 1; i < inputWords.Length; i++)
    {
        if (inputWords[i][0] != inputWords[i - 1].Last()) 
        {
            allCharsMatch = false;
            break;
        }
    }
    return allCharsMatch;
}

bool IsSmooth(string input)
{
    var inputWords = input.Split();

    bool allCharsMatch = true;
    for (int i = 1; i < inputWords.Length; i++)
    {
        if (inputWords[i][0] != inputWords[i - 1].Last()) 
        {
            allCharsMatch = false;
            break;
        }
    }
    return allCharsMatch;
}

How can I get the same functionality with LINQ, I tried looking it up but its usage of lambda functions confused me. Should I stick with this type of loops instead of LINQ and where can I learn LINQ, Microsoft's LINQ documentation is too complex for me. If I need to spend more time before I get into LINQ what should I accomplish / know?

reflectronic•5/6/24, 11:12 PM

this is pretty difficult to do with LINQ

reflectronic•5/6/24, 11:12 PM

i would not use LINQ for this

Rreflectronic i would not use LINQ for this

kaplumbanecdetOP•5/6/24, 11:13 PM

Alright, what do you think about rest of the question?

kaplumbanecdetOP•5/6/24, 11:14 PM

The main part I'm stuck is at learning these concepts.

Angius•5/6/24, 11:15 PM

You mean LINQ and lambdas?

AAngius You mean LINQ and lambdas?

kaplumbanecdetOP•5/6/24, 11:15 PM

Yes both.

Angius•5/6/24, 11:15 PM

The latter is very simple once you understand they're just functions

Angius•5/6/24, 11:16 PM

is equivalent to

reflectronic•5/6/24, 11:18 PM

though, i guess one way to do it is

or you can use a name... i don't know which i prefer

Rreflectronic though, i guess one way to do it is ```cs var words = input.Split(); bool allCh...

kaplumbanecdetOP•5/6/24, 11:19 PM

yeah the .Zip and .All methods I don't know what are they used for also I am not familiar with lambdas, I will work on it.

Angius•5/6/24, 11:31 PM

returns

true

true

if the predicate (the lambda passed into it) returns

true

true

for all elements

Angius•5/6/24, 11:33 PM

not all elements result in a

true

true

from the lambda, so the entire will return

Samarichitane•5/6/24, 11:42 PM

Best explanation is with foreach i think atleast thats how i learned

MODiX•5/6/24, 11:43 PM

Servator

REPL Result: Success

Console Output

Compile: 506.149ms | Execution: 88.701ms | React with ❌ to remove this embed.

Samarichitane•5/6/24, 11:43 PM

Kkaplumbanecdet ```cs bool IsSmooth(string input) { var inputWords = input.Split(); boo...

olayk•5/7/24, 1:48 PM

I am not the most advanced at C#, but if you want to get better about solving this type of problem I would recommend looking up folds / reduces and maps.

A map you go over all the values in a collection and perform some function on them. A fold you have an accumulator and a function that takes your accumulator and each value and returns a new value

olayk•5/7/24, 1:48 PM

In this case, All is a type of fold that takes a predicate and returns the AND of all the predicates applied to the values

olayk•5/7/24, 1:50 PM

In LINQ, they call a fold the Aggregate function

olayk•5/7/24, 1:50 PM

Where is a filter

olayk•5/7/24, 1:51 PM

And it looks like Select is a type of map

olayk•5/7/24, 1:53 PM

hope this helps