使用HTML DOM在新行中将元素追加到文本框中

Question

Suppose i have textbox :-

<input type="text" name="content"  id="content"/>

And i am trying append text to this input box in the following manner:-

document.getElementById("content").value+= "A";

The output is something like:-

AAAA....

Each time, the text is getting appended in the same line, how can make the text to append each time to the new line? Like that of below.

A
A
A
.
.

Answer 1

Instead of an input type text, you can use a text area and then style it to look like a text box.

<textarea name="textarea_content" id="tx_content"></textarea>

document.getElementById("tx_content").value+= "A\n";
document.getElementById("tx_content").value+= "A\n";

JSFiddle: https://jsfiddle.net/sx7t3ykc/

Answer 2

The input textbox will support one single line. not multiple lines. that is it's behaviour. That's why your text is shown in a single line.

If you need multiple lines, then you need to use <textarea></textarea> element

Answer 3

input is used for a single line. Try using textarea .

Refer code below:

<textarea type="text" name="content"  id="content">
</textarea>

and js will be like this:

document.getElementById("content").value+= "A\n";

Answer 4

I have made you an example that appends a new "A" char every 5 seconds. I use textarea instead of the input tag.

 setInterval(appendNewChar, 5000) function appendNewChar() { document.getElementById("myTextArea").value += "A\\n"; } 

 <textarea id="myTextArea"></textarea> 

Answer 5

As @GuyFromChennai said, you have to use tag instead of , also, writing '\\n' will make the line break, I tried this:

<textarea name="content"  id="content"></textarea>

for (let i=0; i<3; i++){
   document.getElementById("content").value+= "A\n"";
}