jquery：检查元素中是否存在字符串，返回布尔值

Question

Assuming I have this:

<div id="elementId">bla bla bla some text bla bla</div>

I want to check if this div text contains 'some text', then return true, otherwise return false, how to do that?

Answer 1

var isContains = $('#elementId').text().indexOf('some text') > -1;

Answer 2

您可以使用:contains()选择器并检查.length以查看它是否匹配任何内容，如下所示：

return $("#elementId:contains('some text')").length > 0;

Answer 3

I used the same way of the buddy above...:

if($('#div_searched').text().indexOf('bla') != -1)

This will return true when it found the word bla on div_searched

Answer 4

let myNode = document.getElementById("elementId")
const Value = myNode.textContent || myNode.innerText
const txtExist = Boolean(Value.replace(/\s/g, ""));

Note: innerText does work in IE, also textContent is not supported in IE8 and older

Answer 5

I think this should also work.

return $("#elementId:contains('some text')").length ? true : false;

It should return true if length greater than 0, otherwise it will return false.