This article describes in detail the connection and difference between values of html, val, and text attributes in jquery. The following is a good example. Do not miss out on interested friends first, there are two methods in the html attribute: one with a parameter and the other without a parameter.
1. No parameter html (): obtains the html content of the First Matching Element. This function cannot be used in XML documents. But it can be used in XHTML documents and returns a String
Example:
Html page code:
Hello
Jquery code: $ ("p" ).html ();
Result: Hello.
2. html (val): sets the html content of each matching element. This function cannot be used in XML documents. But it can be used in XHTML documents. Returns a jquery object.
Html page code:
Jquery code: $ ("p" ).html ("
Nice to meet you
");
Result :[
Nice to meet you
]
Second, there are two methods in the text attribute: one with a parameter and the other without a parameter.
1. No parameter text (): obtains the content of all matching elements. The result is a combination of text content contained by all matching elements. Returns a String
Example:
Html page code:
HelloFine
Thank you!
Jquery code: $ ("p"). text ();
Result: HellofineThankyou!
2. text (val): Set the text content of all matching elements, similar to html, however, encode HTML (replace "<" and ">" with the corresponding HTML Entity ). returns a jquery object.
Html page code:
Test Paragraph.
Jquery code: $ ("p"). text ("
SomeNew text .");
Result :[
SomeNew text.
]
Finally, there are two methods in the val () attribute, one with a parameter and the other without a parameter.
1. No parameter val (): obtains the current value of the First Matching Element. In jQuery 1.2, the value of any element can be returned. Including select. If multiple values are selected, an array containing the selected values is returned.
Returns a String, array
Example:
Html page code:
The Code is as follows:
Single Single2
Multiple Multiple2 Multiple3
Jquery code: $ ("p"). append ("
Single:"+ $ (" # Single "). val () +"
Multiple:"+ $ (" # Multiple "). val (). join (","));
Result :[
Single:SingleMultiple:Multiple, Multiple3
]
2. val (val): sets the value of each matching element. In jQuery 1.2, this can also assign values to check, select, and radio elements, and return a jquery object.
Html page code:
Jquery code: $ ("input"). val ("hello world! ");
Result: hello world!
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Summary:
1. If Assign values to options in the tag,Although option has the value attribute, the value attribute of option on the page is not displayed on the page, the text fields between option labels can be displayed on the page. Therefore, to assign values to the option tag, use the html () method.2. If The value Attribute of the input tag is displayed on the page, therefore, if you assign values to the text of the Input tag and display the text value in the browser during browser parsing, you must use val () and attribute.
