$(:text)
和$(input[type="text"])
Jquery选择器之间有什么区别。
As of jQuery 1.5.2, :text selects input elements that have no specified type attribute (in which case type="text" is implied).
This difference in behavior between $( ":text" ) and $( "[type=text]" ), can be seen below:
$( "<input>" ).is( "[type=text]" ); // false
$( "<input>" ).is( ":text" ); // true
Additional Notes:
Because :text is a jQuery extension and not part of the CSS specification, queries using :text cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use [type="text"] instead. https://api.jquery.com/text-selector/
From the Jquery api :
$( ":text" ) is equivalent to $( "*:text" ).
so equivalent of $('input[type="text"]')
is $("input:text")
$(input[type="text"])
will select all the input tags which have the type specified
$(:text)
will select all the input tags which have the type specified or not defined
<input type="text" name="text1" value="abc" />
<input name="text2" value="xyz" />
$(input[type="text"])
will select the first input tag only
$(:text)
will select both input tages
check js fiddle demo
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