我正在實施搜索功能。我發現它的鏈接工作正常..但一個問題是它沒有設置警報時,有在頁面中找不到匹配項。請告訴我插入該警報的位置。我不調試警報。 我這樣做.match.length()== 0然後我顯示警報,但它不工作,你可以請幫忙嗎?如何設置警報,如果沒有在jquery搜索中找到匹配
這裏是我找到代碼的鏈接。 http://jsbin.com/umodoy/7/edit
var searchIndex = -1;
var searchTermOld ='';
$(document).ready(function(){
$('.searchbox').on('change',function(){
if($(this).val()===''){
var selector= "#realTimeContents";
$(selector+' span.match').each(function(){
$(this).replaceWith($(this).html());
});
}
searchIndex = -1;
$('.searchNext').attr("disabled", "disabled");
$('.searchPrev').attr("disabled", "disabled");
searchTermOld = $(this).val();
});
$('.searchbox').on('keyup',function(){
var selector= "#realTimeContents";
if($(this).val()===''){
$(selector+' span.match').each(function(){
$(this).replaceWith($(this).html());
});
}
if($(this).val() !== searchTermOld){
$(selector+' span.match').each(function(){
$(this).replaceWith($(this).html());
});
searchIndex = -1;
$('.searchNext').attr("disabled", "disabled");
$('.searchPrev').attr("disabled", "disabled");
}
});
$('.search').on('click',function(){
if(searchIndex == -1){
var searchTerm = $('.searchbox').val();
searchAndHighlight(searchTerm);
}
else searchNext();
if($('.match').length >1){
$('.searchNext').removeAttr("disabled");
$('.searchPrev').removeAttr("disabled");
}
});
$('.searchNext').on('click',searchNext);
$('.searchPrev').on('click',searchPrev);
});
function searchAndHighlight(searchTerm) {
if (searchTerm) {
var searchTermRegEx, matches;
var selector= "#realTimeContents";
$(selector+' span.match').each(function(){
$(this).replaceWith($(this).html());
});
try {
searchTermRegEx = new RegExp('('+searchTerm+')', "ig");
} catch (e) {
return false;
}
$('.highlighted').removeClass('highlighted');
matches = $(selector).text().match(searchTermRegEx);
if (matches !==null && matches.length > 0) {
var txt = $(selector).text().replace(searchTermRegEx, '<span class="match">$1</span>');
$(selector).html(txt);
searchIndex++;
$('.match:first').addClass('highlighted');
$(document).scrollTop($('.match').eq(searchIndex).offset().top);
return true;
}
return false;
}
return false;
}
function searchNext(){
searchIndex++;
if (searchIndex >= $('.match').length) searchIndex = 0;
$('.highlighted').removeClass('highlighted');
$('.match').eq(searchIndex).addClass('highlighted');
$(document).scrollTop($('.match').eq(searchIndex).offset().top);
}
function searchPrev(){
searchIndex--;
if (searchIndex < 0) searchIndex = $('.match').length - 1;
$('.highlighted').removeClass('highlighted');
$('.match').eq(searchIndex).addClass('highlighted');
$(document).scrollTop($('.match').eq(searchIndex).offset().top);
}
只有一個問題,它滾動到很多。如果匹配在同一頁上它也scroll.I認爲它只是滾動時,它的頁面上方或下方 – Rohit
讓我檢查.. –
你首先添加大量數據,然後搜索它滾動太多,它看起來不好,它滾動到文本.. – Rohit