Javascript .querySelector通过innerTEXT查找<div>

我如何能找到DIV与某些文本?例如:

<div>
SomeText, text continues.
</div>

试图使用这样的东西:

var text = document.querySelector('div[SomeText*]').innerTEXT;
alert(text);

当然，这是行不通的。我该怎么做呢?

当前回答

下面是XPath方法，但是使用了最少的XPath术语。

基于元素属性值的常规选择(用于比较):

// for matching <element class="foo bar baz">...</element> by 'bar'
var things = document.querySelectorAll('[class*="bar"]');
for (var i = 0; i < things.length; i++) {
    things[i].style.outline = '1px solid red';
}

基于元素内文本的XPath选择。

// for matching <element>foo bar baz</element> by 'bar'
var things = document.evaluate('//*[contains(text(),"bar")]',document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i = 0; i < things.snapshotLength; i++) {
    things.snapshotItem(i).style.outline = '1px solid red';
}

这里是不区分大小写的，因为文本更不稳定:

// for matching <element>foo bar baz</element> by 'bar' case-insensitively
var things = document.evaluate('//*[contains(translate(text(),"ABCDEFGHIJKLMNOPQRSTUVWXYZ","abcdefghijklmnopqrstuvwxyz"),"bar")]',document,null,XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i = 0; i < things.snapshotLength; i++) {
    things.snapshotItem(i).style.outline = '1px solid red';
}

2019-08-22 22:34:16

其他回答

我也有类似的问题。

函数返回包含arg文本的所有元素。

这对我来说很管用:

function getElementsByText(document, str, tag = '*') {
return [...document.querySelectorAll(tag)]
    .filter(
        el => (el.text && el.text.includes(str))
            || (el.children.length === 0 && el.outerText && el.outerText.includes(str)))

}

2019-10-27 21:00:02

因为你已经在javascript中要求它，所以你可以有这样的东西

function contains(selector, text) {
  var elements = document.querySelectorAll(selector);
  return Array.prototype.filter.call(elements, function(element){
    return RegExp(text).test(element.textContent);
  });
}

然后像这样叫它

contains('div', 'sometext'); // find "div" that contain "sometext"
contains('div', /^sometext/); // find "div" that start with "sometext"
contains('div', /sometext$/i); // find "div" that end with "sometext", case-insensitive

2016-05-08 09:52:29

如果你不想使用jquery或类似的东西，那么你可以试试这个:

function findByText(rootElement, text){
    var filter = {
        acceptNode: function(node){
            // look for nodes that are text_nodes and include the following string.
            if(node.nodeType === document.TEXT_NODE && node.nodeValue.includes(text)){
                 return NodeFilter.FILTER_ACCEPT;
            }
            return NodeFilter.FILTER_REJECT;
        }
    }
    var nodes = [];
    var walker = document.createTreeWalker(rootElement, NodeFilter.SHOW_TEXT, filter, false);
    while(walker.nextNode()){
       //give me the element containing the node
       nodes.push(walker.currentNode.parentNode);
    }
    return nodes;
}

//call it like
var nodes = findByText(document.body,'SomeText');
//then do what you will with nodes[];
for(var i = 0; i < nodes.length; i++){ 
    //do something with nodes[i]
}

在数组中拥有包含文本的节点后，就可以对它们进行操作。比如提醒每个人或打印到控制台。需要注意的是，这可能并不一定会抓取div本身，这将抓取拥有您正在寻找的文本的textnode的父节点。

2016-05-08 10:28:38

使用XPath和document.evaluate()，并确保使用text()而不是。为contains()参数，否则你将匹配整个HTML，或最外层的div元素。

var headings = document.evaluate("//h1[contains(text(), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

或者忽略前导和尾随空格

var headings = document.evaluate("//h1[contains(normalize-space(text()), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

或匹配所有标签类型(div, h1, p等)

var headings = document.evaluate("//*[contains(text(), 'Hello')]", document, null, XPathResult.ANY_TYPE, null );

然后迭代

let thisHeading;
while(thisHeading = headings.iterateNext()){
    // thisHeading contains matched node
}

2017-12-11 15:54:35