How jquery modifies the class of tr

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Modify the class method: 1, use removeClass () to remove the specified class from the tr element, syntax "$(" tr ") .removeClass (class)"; 2, use addClass () to add the specified class to the tr element, syntax "$(" tr ") .addClass (class)".

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

Jquery's method of modifying the tr class

First use removeClass () to remove the specified class from the tr element

Then use addClass () to add the specified class to the tr element

Example:

$(document) .ready (function () {$("button") .click (function () {$("tr") .removeClass ("intro1"); $("tr") .addClass ("intro2");}) }); .intro1 {color:red;} .intro2 {color:blue } person information, name, age. Peter 20 Lois 20 modifies the class of tr

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