我在寻找：
我正在努力为用户创建一种简单的方法来搜索人员列表，并将结果立即显示在搜索字段下方。结果必须显示“关闭”结果，而不是精确。例如：用户搜索“史密斯先生”并显示以下现有结果：“约翰史密斯”（因为没有“史密斯先生”条目，它显示一个带有关键字“史密斯”）
我有什么：
我有一个工作代码，允许用户输入一些字符，并显示包含与输入匹配的字符串的所有div（参见jsfiddle：http://jsfiddle.net/891nvajb/5/代码也在下面） 不幸的是，这只显示完全匹配的结果。
<body>
<input type="text" id="edit_search" onkeyup="javascript: find_my_div();">
<input type="button" onClick="javascript: find_my_div();" value="Find">
<script>
function gid(a_id) {
return document.getElementById (a_id) ;
}
function close_all(){
for (i=0;i<999; i++) {
var o = gid("user_"+i);
if (o) {
o.style.display = "none";
}
}
}
function find_my_div(){
close_all();
var o_edit = gid("edit_search");
var str_needle = edit_search.value;
str_needle = str_needle.toUpperCase();
if (str_needle != "") {
for (i=0;i<999; i++) {
var o = gid("user_"+i);
if (o) {
var str_haystack = o.innerHTML.toUpperCase();
if (str_haystack.indexOf(str_needle) ==-1) {
// not found, do nothing
}
else{
o.style.display = "block";
}
}
}
}
}
</script>
<div id="user_0" style="display:none">Andy Daulton<br/>Owner Nissan<br/><br/></div>
<div id="user_1" style="display:none">Doug Guy<br/>Bug Collector<br/><br/></div>
<div id="user_2" style="display:none">Sam Hilton<br/>Famous Celebrity in Hollywood<br/><br/></div>
<div id="user_3" style="display:none">Don Grey<br/>Old man<br/><br/></div>
<div id="user_4" style="display:none">Amy Hinterly<br/>Cook<br/><br/></div>
<div id="user_5" style="display:none">Gary Doll<br/>Racecar Driver<br/><br/></div>
<div id="user_6" style="display:none">Tod Akers<br/>Football Player<br/><br/></div>
<div id="user_7" style="display:none">Greg Barkley<br/>Interior designer<br/><br/></div>
<div id="user_8" style="display:none">Alen Simmons<br/>8th place winner<br/><br/></div>
答案 0 :(得分：3)
使用正则表达式
分割搜索字符串中的单词searchString.split(/\W/);
并对结果数组中的每个单词进行OR搜索。
更新了fiddle
var searchStrings = str_needle.split(/\W/);
for (var i = 0, len = searchStrings.length; i < len; i++) {
var currentSearch = searchStrings[i].toUpperCase();
if (currentSearch !== "") {
nameDivs = document.getElementsByClassName("name");
for (var j = 0, divsLen = nameDivs.length; j < divsLen; j++) {
if (nameDivs[j].textContent.toUpperCase().indexOf(currentSearch) !== -1) {
nameDivs[j].style.display = "block";
}
}
}
}
答案 1 :(得分：1)
另一种方法如下：
function gid(a_id) {
return document.getElementById(a_id);
}
function close_all() {
// applies the Array.prototype.forEach() method to the array-like nodeList
// returned by document.querySelectorAll() (the string passed to which finds all
// elements with an id that starts with ('^=') the string 'user_':
[].forEach.call(document.querySelectorAll('[id^=user_]'), function(div) {
// 'div' is the array element (the node) itself:
div.style.display = 'none';
});
}
function find_my_div() {
close_all();
// getting the trimmed lower-cased string from the input element, split
// on white-space characters to create an array:
var keywords = gid('edit_search').value.trim().toLowerCase().split(/\s+/),
// as above, selecting all elements whose id starts with the string 'user_':
haystack = document.querySelectorAll('[id^="user_"]'),
// working out whether text is accessed by node.textContent, or node.innerText:
textProp = 'textContent' in document.body ? 'textContent' : 'innerText',
// an initialised variable, for later:
userWords,
// filters the haystack (the divs whose id starts with 'user_'):
found = [].filter.call(haystack, function(user) {
// assigns the lower-cased string to the created-variable:
userWords = user[textProp].toLowerCase();
// returns those div elements whose text contains some of
// the words returned, earlier, as the keywords:
return keywords.some(function (word) {
return userWords.indexOf(word) > -1;
});
});
// iterates over the found elements, and shows them:
[].forEach.call(found, function(user) {
user.style.display = 'block';
});
}
<body>
<input type="text" id="edit_search" onkeyup="javascript: find_my_div();">
<input type="button" onClick="javascript: find_my_div();" value="Find">
<script>
function gid(a_id) {
return document.getElementById(a_id);
}
function close_all() {
[].forEach.call(document.querySelectorAll('[id^=user_]'), function(div) {
div.style.display = 'none';
});
}
function find_my_div() {
close_all();
var keywords = gid('edit_search').value.trim().toLowerCase().split(/\s+/),
haystack = document.querySelectorAll('[id^="user_"]'),
textProp = 'textContent' in document.body ? 'textContent' : 'innerText',
userWords,
found = [].filter.call(haystack, function(user) {
userWords = user[textProp].toLowerCase();
return keywords.some(function (word) {
return userWords.indexOf(word) > -1;
});
});
console.log(found);
[].forEach.call(found, function(user) {
user.style.display = 'block';
});
}
</script>
<div id="user_0" style="display:none">Andy Daulton
<br/>Owner Nissan
<br/>
<br/>
</div>
<div id="user_1" style="display:none">Doug Guy
<br/>Bug Collector
<br/>
<br/>
</div>
<div id="user_2" style="display:none">Sam Hilton
<br/>Famous Celebrity in Hollywood
<br/>
<br/>
</div>
<div id="user_3" style="display:none">Don Grey
<br/>Old man
<br/>
<br/>
</div>
<div id="user_4" style="display:none">Amy Hinterly
<br/>Cook
<br/>
<br/>
</div>
<div id="user_5" style="display:none">Gary Doll
<br/>Racecar Driver
<br/>
<br/>
</div>
<div id="user_6" style="display:none">Tod Akers
<br/>Football Player
<br/>
<br/>
</div>
<div id="user_7" style="display:none">Greg Barkley
<br/>Interior designer
<br/>
<br/>
</div>
<div id="user_8" style="display:none">Alen Simmons
<br/>8th place winner
<br/>
<br/>
</div>
参考文献：