jquery Find Element

One: Find elements

* All elements

Element all elements of the name (P,input)

#id element with the specified ID attribute

. class has all the elements of the specified class attribute

Selector1,selector2 can match elements of multiple selectors

Two: Basic Selector

Div P One element is the descendant of another element

div > P (Parent > Child) An element is a direct sub-node of another element (you can use * after p to specify all child elements of the element)

Div1 + div2 (previous + next) adjacent sibling selector selects only the element immediately following the previous element

DIV1 ~ div2 (previous + siblings) Brother selector selects all sibling elements of the previous element

Three: Basic filter

: Not (selector) all elements except selectors (such as Div:not ("#summary"))

: first removes elements from element one

: The last element of an element is removed

: Even elements with an even number indexed in the selected element

: Odd elements with an odd index number in the selected element

: EQ (Index) The element in the selected element with the index number specified as the number in the parameter

: GT (Index) The element in the selected element that has an index number greater than the number specified in the parameter

: LT (index) the element in the selected element that has an index number less than the number specified in the parameter

Header all

: Animated elements that are being animated

: The element with focus currently focused

IV: Content Filter

: Contains ("Text") contains the elements of the specified text in the argument

: Empty has no child nodes for all elements

: Parent has elements of child nodes (text or child elements)

: Has (selector) contains at least one element that matches the selector (for example, Div:has (p)) matches all DIV elements containing the <p> element

Five: Visibility Filter

: Hidden all hidden elements

: Visible all elements that occupy space in the page layout

Elements that will not be selected include: display:none;height/width:0; ancestor elements are hidden;

Selected elements: visibility:hidden;opacity:0; because they all occupy space in the layout.

VI: Child node filter

: The value in the Nth-child (expr) parameter is an index starting at 1

: First-child The first child node of the currently selected element

: Last-child The last child node of the currently selected element

: Only-child When the element is the only child node in the parent element

Seven: Property filters

[attribute] The element that owns the specified property

[attribute= ' value '] has the specified attribute, and the value is the specified element of merit

[attribute! = ' value ') has the specified attribute, and the value complement specifies that the element is worth

The value of [attribute^= ' value '] property begins with a specific value

Eight: Form selector

: Input all input elements

: text INPUT element of all text types

: password INPUT element for all password types

: Radio all radio buttons

: CheckBox for all check boxes

: Submit all submission Buttons

: Image button for all pictures

: Reset All Resets button

: Button all the <button> elements

: File selector for all files

: Selected All selected list items in the drop-down list

: Enabled all the available form elements

: Disabled all disabled form elements

: Checked all selected radio buttons or checkboxes

jquery Find Element