javascript, jQuery - check if value exists in array
187
How do I check if an array includes a value in JavaScript?
33113
Get unique results from JSON array using jQuery
116788
Check if Cell value exists in Column, and then get the value of the NEXT Cell
112077
How to check if a value already exists to avoid duplicates?
27759
Count how often a particular value appears in an array
89480
Checking if an array has some items in coffeescript
90956
Check if element exists in jQuery
6965
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
77302
Accessing different elements in a javascript array
5307
Check if a variable is in an ad-hoc list of values
39682
Check if limit exists and its value
6988
How to check whether an array is empty using PHP?
155520
Why does $('#id') return true if id doesn't exist?
102897
check multiple values exists php array
44858
JavaScript isset() equivalent
151230
How to filter an array by a condition
156588
Test if a string contains any of the strings from an array