JavaScript：在鼠标指针下突出显示/选择单词 [英] JavaScript: Highlight/select word under mouse pointer

问题描述

当鼠标指针悬停在单词上时，如何使用JavaScript突出显示（css：background-color）单词？应该可以通过点击然后将其保存在变量中来选择它。

How do I highlight (css: background-color) a word with JavaScript when the mouse pointer is hovering over it? It should be possible to select it by clicking on it then and saving it in a variable.

推荐答案

var words=$("#yourTextContainer").text().split(' ');
$("#yourTextContainer").html("");
$.each(words, function(i,val){
//wrap each word in a span tag 
$('<span/>').text(val+" ").appendTo("#yourTextContainer");

});
$("#yourTextContainer span").live("mouseover",function(){
//highlight a word when hovered 
$(this).css("background-color","yellow");
});
$("#yourTextContainer span").live("mouseout",function(){
//change bg to white if not selected 
if($(this).css("background-color") !="rgb(0, 0, 255)")
{
 $(this).css("background-color","white");
}
});
$("#yourTextContainer span").live("click",function(){
$("#yourTextContainer span").css("background-color","white");
$(this).css("background-color","blue");
//gets the text of clicked span tag
var text = $(this).text();
});

编辑：参见示例 http://jsfiddle.net/aD5Mu/

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