我正在尝试使用多种颜色突出显示文字。但文字并没有突出显示。下面给出的例子
<span class='classOne'>Hello there <span class='classTwo'>highlight not</span> working.</span>
对于单色,它可以正常工作,不适用于多种颜色。下面给出了我从谷歌搜索获得的源代码。
jQuery.fn.highlight = function (pat) {
function innerHighlight(node, pat) {
var skip = 0;
if (node.nodeType == 3) {
var pos = node.data.toUpperCase().indexOf(pat);
if (pos >= 0) {
var spannode = document.createElement('span');
spannode.className = 'highlight';
var middlebit = node.splitText(pos);
var endbit = middlebit.splitText(pat.length);
var middleclone = middlebit.cloneNode(true);
spannode.appendChild(middleclone);
middlebit.parentNode.replaceChild(spannode, middlebit);
skip = 1;
}
} else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
for (var i = 0; i < node.childNodes.length; ++i) {
i += innerHighlight(node.childNodes[i], pat);
}
}
return skip;
}
return this.length && pat && pat.length ? this.each(function () {
innerHighlight(this, pat.toUpperCase());
}) : this;
};
jQuery.fn.removeHighlight = function () {
return this.find("span.highlight").each(function () {
this.parentNode.firstChild.nodeName;
with(this.parentNode) {
replaceChild(this.firstChild, this);
normalize();
}
}).end();
};
答案 0 :(得分:0)
当我这样做时它很有用。看看这个。
$.fn.highlight = function (pat) {
function innerHighlight(node, pat) {
var skip = 0;
if (node.nodeType == 3) {
var pos = node.data.toUpperCase().indexOf(pat);
if (pos >= 0) {
var spannode = document.createElement('span');
spannode.className = 'highlight';
var middlebit = node.splitText(pos);
var endbit = middlebit.splitText(pat.length);
var middleclone = middlebit.cloneNode(true);
spannode.appendChild(middleclone);
middlebit.parentNode.replaceChild(spannode, middlebit);
skip = 1;
}
} else if (node.nodeType == 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
for (var i = 0; i < node.childNodes.length; ++i) {
i += innerHighlight(node.childNodes[i], pat);
}
}
return skip;
}
return this.length && pat && pat.length ? this.each(function () {
innerHighlight(this, pat.toUpperCase());
}) : this;
};
$.fn.removeHighlight = function () {
return this.find("span.highlight").each(function () {
this.parentNode.firstChild.nodeName;
with(this.parentNode) {
replaceChild(this.firstChild, this);
normalize();
}
}).end();
};
$('.classOne').highlight('Hello');
$('.classTwo').highlight('highlight');
&#13;
.classOne .highlight {
background-color: #FF0;
}
.classTwo .highlight {
background-color: grey;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
<span class='classOne'>Hello there <span class='classTwo'>highlight</span> working now.</span>
&#13;
对于多色,您必须编写不同的CSS类,或者可以更新添加highlight
类的逻辑以添加多个类以支持多色。