Replace Text In Html Textarea

I have this script that matches a text on keyup in a textarea if between the minus sign. $('#notes').keyup(function() { // notes is the id of the textarea var regex = /

Solution 1:

Try the below code.

var triggerTime;
$("#notes").keyup(function() { // notes is the id of the textarea
        clearTimeout(triggerTime);
        var myValue = $(this).val();
        triggerTime = setTimeout(function(){
            var regex = /\-([^\)]+)\-/gmi; // it gets the text between minus sign. Example: -text-
            if(myValue.match(regex)){
                var reference = myValue.match(regex);
                $.ajax({
                    async: false, 
                    type: "POST",
                    url: "scripts/script.php",
                    data: { "reference" : reference },
                    success: function(data) {   
                        // I need to replace the text matched by the regex with data in the textarea.
                        // I need to stop the ajax calling after success or call it only if regex is matched
                    }
                }); 
            }
        }, 3000);// Call request in 3 second
    });

This is the optimized version of your code. it will wait for users to complete, and in inactivity of 3 seconds, it will generate an Ajax call.

you can change the frequency to 2000 OR 1000 (2 second and 1 second respectively).

Solution 2:

I solved the problem adding contenteditable="true" to the textarea. Below the final jquery code:

    var textInput = $("#notes"); // the ID of the textarea
    var triggerTime;
    $("#notes").keyup(function() { // notes is the id of the textarea
        clearTimeout(triggerTime);
        var myValue = $(this).text();
        triggerTime = setTimeout(function(){
            var regex = /\-([^\)]+)\-/gmi; // it gets the text between minus sign. Example: -text-
            if(myValue.match(regex)){
                var newValue;
                var reference = myValue.match(regex);
                $.ajax({
                    async: false, 
                    type: "POST",
                    url: "scripts/parser.php",
                    data: { "reference" : reference },
                    success: function(data) {       
                        newValue = data;    
                        console.log(newValue);
                        $('.textarea').html(function() {
                            return $(this).text().replace(reference[0], '<strong>' + newValue + '</strong>');
                        });
                    }
                }); 
            }
        }, 1000);// Call request in 1 second
    });