逐行阅读textarea中的文本

Question

I am using textarea to take user input. and want to read line by line. But it's not displaying anything I want to make a comma seperated list of the text in different lines

JS:

$('input[type=button]').click( function() {
    string = document.getElementById("hi").val();
    alert(string); 
    var html="";
    var lines = $('#id').val().split('\n');
    for(var i = 0;i < lines.length;i++){
        //code here using lines[i] which will give you each line
        html+=lines[i];
        html+=",";
    }
    $("#inthis").html(string);
});

HTML:

<textarea id="hi" name="Text1" cols="40" rows="5" placeholder="enter one wdg in one line" ></textarea>

<input type="button" value="test" />
<div id="inthis"></div>

Here is the jsfiddle:

http://jsfiddle.net/pUeue/1077/

Answer 1

Here's updated js...

Demo Fiddle

$('input[type=button]').click(function () {
    var html = "";
    var lines = $('#hi').val().split('\n');
    for (var i = 0; i < lines.length; i++) {
        //code here using lines[i] which will give you each line
        html += lines[i];
        html += ",";
    }
    html = html.substring(0,html.length-1);
    $("#inthis").html(html);
});

Answer 2

Firstly you have a confused mix of native javascript and jQuery code in your example. A native DOM element has no val() method for example, that's jQuery. Secondly, you could massively simplify your code by just using split() and join(',') . Try this:

$('input[type=button]').click( function() {
    var string = $("#hi").val().split('\n').join(',');
    $("#inthis").html(string);
});

Example fiddle

Answer 3

.val() is a Jquery function, you will have to convert the DOM element to jquery obj or use .value

$('input[type=button]').click(function () {
  string = $(document.getElementById("hi")).val();
  string = string.replace("\n", ",")
  $("#inthis").html(string);
});

http://jsfiddle.net/pUeue/1090/

Answer 4

Change:

string = document.getElementById("hi").val();

TO

string = document.getElementById("hi").value;

jsfiddle

Answer 5

there is mistake in second line u have used jQuery val instead of value so try below:-

string = document.getElementById("hi").value;

and need to put the below line before you load the string in div.:-

html = html.substring(0,html.length-1);

Answer 6

http://jsfiddle.net/pUeue/1085/

$('input[type=button]').click( function() {
    string = $(document.getElementById("hi")).val();
    alert(string); 
    var htmlD="";
    var lines = string.split('\n');
    for(var i = 0;i < lines.length;i++){
    //code here using lines[i] which will give you each line
    htmlD+=lines[i];
    htmlD+=",";
}
    $("#inthis").html(htmlD);
});

Answer 7

I have corrected your code here: http://jsfiddle.net/pUeue/1080/ .

$('input[type=button]').click( function() {
    string = $("#hi").val();
    alert(string); 
    var html="";
    var lines = $('#hi').val().split('\n');
    for(var i = 0;i < lines.length;i++) {
        //code here using lines[i] which will give you each line
        html+=lines[i];
        html+=",";
    }
    $("#inthis").html(html);
});

Answer 8

try this

$('input[type=button]').click( function() {
    var lines =  $('#hi').val().split(/\n/);
    $("#inthis").html(lines.join(","));
});