Question

我正在开发一个项目，我需要用另一个字符串替换所有出现的字符串。但是，我只想替换字符串，如果它是文本。例如，我想转此......

<div id="container">
  <h1>Hi</h1>
  <h2 class="Hi">Test</h2>
  Hi
</div>

...成

<div id="container">
  <h1>Hello</h1>
  <h2 class="Hi">Test</h2>
  Hello
</div>

在该示例中，除了作为h2类的“Hi”之外，所有“Hi”都被转换为“Hello”。我试过......

$("#container").html( $("#container").html().replace( /Hi/g, "Hello" ) )

...但是这也取代了html中出现的所有“Hi”

Answer 1

此：

$("#container").contents().each(function () {
    if (this.nodeType === 3) this.nodeValue = $.trim($(this).text()).replace(/Hi/g, "Hello")
    if (this.nodeType === 1) $(this).html( $(this).html().replace(/Hi/g, "Hello") )
})

产生这个：

<div id="container">
    <h1>Hello</h1>
    <h2 class="Hi">Test</h2>
    Hello
</div>

<强> jsFiddle example

Answer 2

结果很好：

function str_replace_all(string, str_find, str_replace){
try{
    return string.replace( new RegExp(str_find, "gi"), str_replace ) ;      
} catch(ex){return string;}}

更容易记住...

Answer 3

 replacedstr = str.replace(/needtoreplace/gi, 'replacewith');

needtoreplace不应舍入'

Answer 4

//Get all text nodes in a given container
//Source: http://stackoverflow.com/a/4399718/560114
function getTextNodesIn(node, includeWhitespaceNodes) {
    var textNodes = [], nonWhitespaceMatcher = /\S/;

    function getTextNodes(node) {
        if (node.nodeType == 3) {
            if (includeWhitespaceNodes || nonWhitespaceMatcher.test(node.nodeValue)) {
                textNodes.push(node);
            }
        } else {
            for (var i = 0, len = node.childNodes.length; i < len; ++i) {
                getTextNodes(node.childNodes[i]);
            }
        }
    }

    getTextNodes(node);
    return textNodes;
}

var textNodes = getTextNodesIn( $("#container")[0], false );
var i = textNodes.length;
var node;
while (i--) {
    node = textNodes[i];
    node.textContent = node.textContent.replace(/Hi/g, "Hello");
}

请注意，这也会匹配＆＃34;嗨＆＃34;只是这个词的一部分，例如＆＃34;山＆＃34 ;.要仅匹配整个单词，请使用/\bHi\b/g

Answer 5

这里你去=＆gt; http://jsfiddle.net/c3w6X/1/

var children='';

$('#container').children().each(function(){
    $(this).html($(this).html().replace(/Hi/g,"Hello")); //change the text of the children

    children=children+$(this)[0].outerHTML; //copy the changed child
});
var theText=$('#container').clone().children().remove().end().text(); //get the text outside of the child in the root of the element

$('#container').html(''); //empty the container

$('#container').append(children+theText.replace(/Hi/g,"Hello")); //add the changed text of the root and the changed children to the already emptied element

jQuery替换html页面中出现的所有字符串

5 个答案: