Check if element exists in jQuery
4521
Is there an "exists" function for jQuery?
3032
How can I select an element by name with jQuery?
795
How to check if element is visible after scrolling?
40229
How do I check if a variable exists?
43713
How can I test if two jQuery wrapped DOM elements are the same?
103062
How do I check whether a checkbox is checked in jQuery?
157008
Check if counter exists
155520
Why does $('#id') return true if id doesn't exist?
80608
JavaScript check if variable exists (is defined/initialized)
38053
php check if file exist
146642
Using an if statement to check if a div is empty
85970
Test if element is present using Selenium WebDriver?
150001
get element value using jquery
112077
How to check if a value already exists to avoid duplicates?
13651
Select current element in jQuery
49696
Checking it see if a file exists in a script
154160
How do I write 'if not clicked' or 'if clicked outside element', using Jquery?