How to find a text using javascript or jquery.

Question

I need to find a text from a paragraph using java script. Is there any code in JavaScript like we do in c# to find a text using "string.Contains("")" method.

Pls help...

Thanks Guys..

Answer 1

You can use str.search()

It will return the position of match and -1 if not found

http://www.w3schools.com/jsref/jsref_search.asp

Answer 2

equivalent of string.Contains("") is indexOf (returns -1 if subString doesnt exist in a string).

you can do :

var myString = "foo";
var myParagraphText = $('#myParagraphId').text();

if(myParagraphText.indexOf(myString) != -1){
    //myParagraphText contains myString
} 

Answer 3

您可以使用string.indexOf（“ text”）方法，该方法将返回“字符串”中“文本”的索引，如果在字符串中找不到文本，则返回-1。

Answer 4

var n = $('p').text();
var regex = new RegExp('text to search for', "i");
if(regex.exec(n) != null) {
  // text found
} else {
  //text not found
}

Answer 5

Use the search() function

If it returns -1, the string is not present Non-negative number means, string is present

var str="hello there";
alert(str.search("there"));

Answer 6

For searching text inside a block element .

var str="your block"
str.search("text to find");


str.indexOf("text to find"); 

return the index of the text