jquery lookup Node (selector)

jquery accomplishes node lookups through selectors:

1. Basic selector:

① Universal/All selectors: $ ("*")//use * to indicate.

②: Tag Selector: $ ("tag name (DIV)")//Use tag name to locate

③:id selector: $ ("#id")

④: Class selector: $ (". Class")

⑤: Group Selector (SET): $ ("TABLE,TD")//all table and TD are selected

⑥: Combo Selector (intersection): $ ("p.c1")//tag p and his class attribute is C1.

2. Hierarchy selector:

①: Descendant selector (space): $ ("div span")//all span tags under div (descendants ... Descendants) are selected.

$ ("div *")//div all tags

②: Descendant selector: $ ("Div>span")//tag span for Div tag's son (only for descendants, not after grandchildren)

$ ("div>") all descendants of the//div tag can be selected

3. Brother Selector:

①:$ ("div+")//Next brother (select only the next sibling tag of the DIV tag)

$ ("Div+div")//Select div tag next brother tag for Div.

②:$ ("div~") all brother tags after//div tag

$ ("div~p")//div tag after all brother tags are selected for p.

JQuery Lookup Node (selector)