C#•17mo ago

LINQ List A (list of strings) "partial" has any member of list B (list of strings)

For instance: List A has "Car","Bicycle" List B has "Blue Car", "Red Baloon","Random stuff" I want it to return true since List B has "Car" in it

10 Replies

Angius•17mo ago

Combine .Any() with .Contains() .Any() on the list, .Contains() on the string as a predicate

mindzor_•17mo ago

if (a.Any(item1=> b.Any(item2=> item1.Contains(item2)))) Like this?

Angius•17mo ago

Does it work?

mindzor_•17mo ago

doesnt look like it does

mtreit•17mo ago

Narrator: it didn't work You need to use Contains on the strings themselves In the second list

mindzor_•17mo ago

item1.Contains item1 is already a string isnt it?

mtreit•17mo ago

Yes, but unless I misunderstood it sounds like you have the lookup inverted. You're asking if "Car" contains "Blue Car" I think "Car" does not contain "Blue Car" "Blue Car" contains "Car"

MODiX•17mo ago

Ero#1111

REPL Result: Success

List<string> a = new()
{
  "Car", "Bicycle"
};

List<string> b = new()
{
   "Blue Car", "Red Baloon", "Random stuff"
};

bool success =
  b.Any(s1 => a.Any(s2 => s1.Contains(s2)));

success

List<string> a = new()
{
  "Car", "Bicycle"
};

List<string> b = new()
{
   "Blue Car", "Red Baloon", "Random stuff"
};

bool success =
  b.Any(s1 => a.Any(s2 => s1.Contains(s2)));

success

Result: bool

True

True

Compile: 593.183ms | Execution: 71.943ms | React with ❌ to remove this embed.

ero•17mo ago

so basically what you already had, just invert the lists

mindzor_•17mo ago

Thanks!

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LINQ List A (list of strings) "partial" has any member of list B (list of strings)