Checking for the presence of an 'Item' in an Array does not work
187
How do I check if an array includes a value in JavaScript?
12418
Checking to see if one array's elements are in another array in PHP
30762
array_key_exists is not working
134025
How to check if an array value exists?
106570
Testing for an empty array object in JSON with jQuery
132624
Search for an item in a Lua list
89480
Checking if an array has some items in coffeescript
30955
Check if a string contains an element from a list (of strings)
151230
How to filter an array by a condition
113201
How do I check if my array has repeated values inside it?
49698
How to remove item from array by value?
95734
Check if something is (not) in a list in Python
42629
How to compare arrays in JavaScript?
6288
How do I check if an object has a specific property in JavaScript?
141442
Why does my string comparison fail?
134748
Determine whether an array contains a value
96246
What's quicker and better to determine if an array key exists in PHP?