HTML Tags in Javascript Alert method

Question

I wanted to know if it s possible to add HTML tags to JavaScript alert   method  such as     lt b gt   lt ul gt   lt li gt    etc   Thanks for your help

User · Answer

You can use all Unicode characters and the escape characters \n and \t. An example:

_x000D_

document.getElementById("test").onclick = function() {_x000D_
  alert(_x000D_
    'This is an alert with basic formatting\n\n' _x000D_
    + "\t• list item 1\n" _x000D_
    + '\t• list item 2\n' _x000D_
    + '\t• list item 3\n\n' _x000D_
    + '???????????????????????\n\n' _x000D_
    + 'Simple table\n\n' _x000D_
    + 'Char\t| Result\n' _x000D_
    + '\\n\t| line break\n' _x000D_
    + '\\t\t| tab space'_x000D_
  );_x000D_
}

_x000D_

<!DOCTYPE html>_x000D_
<title>Alert formatting</title>_x000D_
<meta charset=utf-8>_x000D_
<button id=test>Click</button>

_x000D_

Result in Firefox:

screenshot Firefox

You get the same look in almost all browsers.

User · Answer

You can add HTML into an alert string  but it will not render as HTML  It will just be displayed as a plain string  Simple answer  no

User · Answer

No  you can use only some escape sequences -  n for example  maybe only this one

User · Answer

alert    doesn t support HTML  but you have some alternatives to format your message   You can use Unicode characters as others stated  or you can make use of the ES6 Template literals  For example        catch function  error      const alertMessage    Error retrieving resource  Please make sure          the resource server is accessible         you re logged in      Error    error      window alert alertMessage        Output    As you can see  it maintains the line breaks and spaces that we included in the variable  with no extra characters

User · Answer

This is not possible   Instead  you should create a fake window in Javascript  using something like jQuery UI Dialog

User · Answer

alert   is a method of the window object that cannot interpret HTML tags

[javascript] HTML Tags in Javascript Alert() method

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