How do I select an element in jQuery by using a variable for the ID

Question

For example  the following selects a division with id  2    row      body   find   2      How do I do something like this   row id   5  row      body   find row id     The above syntax produces an error  I checked the jQuery documentation and answers here without success

User · Accepted Answer

row      body   find       row id     More importantly doing the additional body find has no impact on performance  The proper way to do this is simply   row           row id

User · Answer

There are two problems with your code   To find an element by ID you must prefix it with a     You are attempting to pass a Number to the find function when a String is required  passing       5 would fix this as it would convert the 5 to a  5  first

User · Answer

The shortest way would be           row id    Limiting the search to the body doesn t have any benefit   Also  you should consider renaming your ids to something more meaningful  and HTML compliant as per Paolo s answer   especially if you have another set of data that needs to be named as well

User · Answer

I don t know much about jQuery  but try this   row id     5   row      body   find row id     Edit  Of course  if the variable is a number  you have to add     to the front   row id   5 row      body   find     row id

User · Answer

Doing    body   find    is not necessary when looking up by ID  there is no performance gain   Please also note that having an ID that starts with a number is not valid HTML      ID and NAME tokens must begin with a letter   A-Za-z   and may be followed by any number of letters  digits   0-9    hyphens   -    underscores        colons        and periods

User · Answer

You can do it like this   row id   5  row      body   find     row id

[jquery] How do I select an element in jQuery by using a variable for the ID?

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