Check if specific id element exist
4521
Is there an "exists" function for jQuery?
128669
How to check whether multiple values exist within an Javascript array
39785
Selecting an ID with a colon in it with jQuery
104905
Check if XML Element exists
68337
Is there a wildcard selector for identifiers (id)?
45544
Can an html element have multiple ids?
156640
How can I check if a string exists in another string
151839
JavaScript/jQuery - grabbing an integer from an element's id
22387
Find an element by id and replace its contents with php
6369
Is there a spec that the id of elements should be made global variable?
157654
Checking if a key exists in a JavaScript object?
106110
get submit button id
80317
JavaScript and getElementById for multiple elements with the same ID
46816
Get the id value from the page url
55270
Show unique ID on the form (before submitting)
38053
php check if file exist
100464
Can multiple different HTML elements have the same ID if they're different elements?