CODEWITHSUNDEEP
javascriptjquery
Arun
Arun

Reputation: 1704

How to find a text using javascript or jquery.

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..

Upvotes: 0

Views: 348

Answers (6)

Kunal Vashist
Kunal Vashist

Reputation: 2471

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

Upvotes: 0

Mouna Cheikhna
Mouna Cheikhna

Reputation: 39678

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
}

Upvotes: 2

Sunil Kumar B M
Sunil Kumar B M

Reputation: 2795

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"));

Upvotes: 0

hknkrt
hknkrt

Reputation: 106

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

Upvotes: 4

mini
mini

Reputation: 545

you can use string.indexOf("text") method which will return index of the "text" in the "string", return -1 if the text not found in the string.

Upvotes: 1

Marius Ilie
Marius Ilie

Reputation: 3323

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

Upvotes: 0

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