jQuery Selecter (선택자)

jQuery를 사용함에 있어서 가장 중요하고 신경써서 코딩해야할 선택자!

항상 잘사용하는것만 쓰다보니 가끔 사용하는 선택자는 잘 생각이 나지 않아서 첨부합니다.

출처는 w3schools 입니다.

Selector	Example	Selects
*	$("*")	All elements
#id	$("#lastname")	The element with id="lastname"
.class	$(".intro")	All elements with class="intro"
.class,.class	$(".intro,.demo")	All elements with the class "intro" or "demo"
element	$("p")	All <p> elements
el1,el2,el3	$("h1,div,p")	All <h1>, <div> and <p> elements
:first	$("p:first")	The first <p> element
:last	$("p:last")	The last <p> element
:even	$("tr:even")	All even <tr> elements
:odd	$("tr:odd")	All odd <tr> elements
:first-child	$("p:first-child")	All <p> elements that are the first child of their parent
:first-of-type	$("p:first-of-type")	All <p> elements that are the first <p> element of their parent
:last-child	$("p:last-child")	All <p> elements that are the last child of their parent
:last-of-type	$("p:last-of-type")	All <p> elements that are the last <p> element of their parent
:nth-child(n)	$("p:nth-child(2)")	All <p> elements that are the 2nd child of their parent
:nth-last-child(n)	$("p:nth-last-child(2)")	All <p> elements that are the 2nd child of their parent, counting from the last child
:nth-of-type(n)	$("p:nth-of-type(2)")	All <p> elements that are the 2nd <p> element of their parent
:nth-last-of-type(n)	$("p:nth-last-of-type(2)")	All <p> elements that are the 2nd <p> element of their parent, counting from the last child
:only-child	$("p:only-child")	All <p> elements that are the only child of their parent
:only-of-type	$("p:only-of-type")	All <p> elements that are the only child, of its type, of their parent
parent > child	$("div > p")	All <p> elements that are a direct child of a <div> element
parent descendant	$("div p")	All <p> elements that are descendants of a <div> element
element + next	$("div + p")	The <p> element that are next to each <div> elements
element ~ siblings	$("div ~ p")	All <p> elements that are siblings of a <div> element
:eq(index)	$("ul li:eq(3)")	The fourth element in a list (index starts at 0)
:gt(no)	$("ul li:gt(3)")	List elements with an index greater than 3
:lt(no)	$("ul li:lt(3)")	List elements with an index less than 3
:not(selector)	$("input:not(:empty)")	All input elements that are not empty
:header	$(":header")	All header elements <h1>, <h2> ...
:animated	$(":animated")	All animated elements
:focus	$(":focus")	The element that currently has focus
:contains(text)	$(":contains('Hello')")	All elements which contains the text "Hello"
:has(selector)	$("div:has(p)")	All <div> elements that have a <p> element
:empty	$(":empty")	All elements that are empty
:parent	$(":parent")	All elements that are a parent of another element
:hidden	$("p:hidden")	All hidden <p> elements
:visible	$("table:visible")	All visible tables
:root	$(":root")	The document's root element
:lang(language)	$("p:lang(de)")	All <p> elements with a lang attribute value starting with "de"
[attribute]	$("[href]")	All elements with a href attribute
[attribute=value]	$("[href='default.htm']")	All elements with a href attribute value equal to "default.htm"
[attribute!=value]	$("[href!='default.htm']")	All elements with a href attribute value not equal to "default.htm"
[attribute$=value]	$("[href$='.jpg']")	All elements with a href attribute value ending with ".jpg"
[attribute|=value]	$("[title|='Tomorrow']")	All elements with a title attribute value equal to 'Tomorrow', or starting with 'Tomorrow' followed by a hyphen
[attribute^=value]	$("[title^='Tom']")	All elements with a title attribute value starting with "Tom"
[attribute~=value]	$("[title~='hello']")	All elements with a title attribute value containing the specific word "hello"
[attribute*=value]	$("[title*='hello']")	All elements with a title attribute value containing the word "hello"
:input	$(":input")	All input elements
:text	$(":text")	All input elements with type="text"
:password	$(":password")	All input elements with type="password"
:radio	$(":radio")	All input elements with type="radio"
:checkbox	$(":checkbox")	All input elements with type="checkbox"
:submit	$(":submit")	All input elements with type="submit"
:reset	$(":reset")	All input elements with type="reset"
:button	$(":button")	All input elements with type="button"
:image	$(":image")	All input elements with type="image"
:file	$(":file")	All input elements with type="file"
:enabled	$(":enabled")	All enabled input elements
:disabled	$(":disabled")	All disabled input elements
:selected	$(":selected")	All selected input elements
:checked	$(":checked")	All checked input elements

 

혹시 처음 jQuery를 접하는 분들이 계실수도 있다생각하여 몇자 적겠습니다.

 

우리가 HTML 마크업을 할때 id, class 명을 기입하죠?

모두다 그런건 아니지만 평균적으로

고유성을 띄는것은 id로,

그룹성을 띄는것을 class로..

<input type='text' value='탁탁' id='taktak' class='TAK' />
<input type='text' value='틱틱' id='tiktik' class='TAK' />

 이런 마크업을 했다고 가정할게요.

여기서 id가 "taktak"인것의 input의 값을 가지고 오려면 선택자는 어떻게 해야할까요?

(본문 상단에 테이블을 참고해주세요)

$('#taktak').val();

 이것이 끝입니다. 매우 간단합니다 :)

그렇다면 class명이 TAK인것중에 두번째 input의 값은 어떻게 가지고 올까요?

$('.TAK').eq(1).val();

 이것 역시 매우 간단합니다 :)

따라서, 가장 많이사용하는 셀렉터(id, class)는 바로 "." or "#" 이 됩니다.