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  • search() method in JavaScript String

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    JavaScript string search() method : The search() method is used to search a specific string within a given string. It returns the index of the searched string and if no string matched then it returns the -1.


    Syntax of the search() method :

    string.search(search-value)
    

    search-value : This is required parameter. This parameter could be a string or a regular expression. The string value internally converted into the regular expression.


    Example of search() method: Here I will show you how to use the search() method in JavaScript. The first example will take the simple string parameter and the second example take the regular expression as a parameter which will search the string with case-insensitive.


    Example1.html

    <!DOCTYPE html>
    <html>
    <body>
    <p>To display the position of string "good", press button.</p>
    <button onclick="searchString()">search</button>
    <p id="container"></p>
    
    <script>
    function searchString() {
        var msg = "Good things happens with good people."; 
        var indx = msg.search("good");
        document.getElementById("container").innerHTML = indx;
    }
    </script>
    
    </body>
    </html>
    
    Output : 25
    


    Example2.html

    <!DOCTYPE html>
    <html>
    <body>
    
    <p>To search a string for "good", click the button.</p>
    
    <button onclick="searchString()">search</button>
    
    <p id="container"></p>
    
    <script>
    function searchString() {
        var str = "Hey! Good things happens with good people.";
        var indx = str.search(/good/i);
        document.getElementById("container").innerHTML = indx;
    }
    </script>
    
    </body>
    </html>
    
    Output : 5
    

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