嘿所有我发现下面的代码,找到页面中的一个词:正则表达式的JavaScript匹配任何字
function searchAndHighlight(searchTerm, selector) {
if(searchTerm) {
//var wholeWordOnly = new RegExp("\\g"+searchTerm+"\\g","ig"); //matches whole word only
//var anyCharacter = new RegExp("\\g["+searchTerm+"]\\g","ig"); //matches any word with any of search chars characters
var selector = selector || "body"; //use body as selector if none provided
var searchTermRegEx = new RegExp(searchTerm,"ig");
var matches = $(selector).text().match(searchTermRegEx);
if(matches) {
$('.highlighted').removeClass('highlighted'); //Remove old search highlights
$(selector).html($(selector).html()
.replace(searchTermRegEx, "<span class='highlighted'>"+searchTerm+"</span>"));
if($('.highlighted:first').length) { //if match found, scroll to where the first one appears
$(window).scrollTop($('.highlighted:first').position().top);
}
return true;
}
}
return false;
}
$(document).ready(function() {
$('#search-button').on("click",function() {
if(!searchAndHighlight($('#search-term').val())) {
alert("No results found");
}
});
});
中的代码,你可以看到它有VAR anyCharacter =新的RegExp(“\ g [”+ searchTerm +“] \ g”,“ig”); //匹配任何搜索字符的字符。
然而,当我尝试使用正则表达式,像这样:
var searchTermRegEx = new RegExp("\\g["+searchTerm+"]\\g","ig");
它似乎没有返回任何结果的话,即使我一个确切的名称类型。
任何帮助将是伟大的!
这可能会帮助你http://stackoverflow.com/questions/9794851/find-text-string-in-jquery-and-make-it-bold/9795091#9795091 – elclanrs