Tutorials References Exercises Videos Menu
Create Website Get Certified Upgrade


JS Reference

JS by Category JS by Alphabet

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS Object JS Operators JS Precedence JS RegExp JS Statements JS String JS TypedArray

Window

Window Object Window Console Window History Window Location Window Navigator Window Screen

HTML DOM

HTML Documents HTML Elements HTML Attributes HTML Collection HTML NodeList HTML DOMTokenList HTML Styles
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundClip backgroundColor backgroundImage backgroundOrigin backgroundPosition backgroundRepeat backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cssFloat cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex

HTML Events

HTML Events HTML Event Objects

Web APIs

API Console API Fetch API Fullscreen API Geolocation API History API MediaQueryList API Storage API Validation API Web

HTML Objects

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

Other References

CSSStyleDeclaration JS Conversion


HTML DOM Document write()

Examples

Write some text directly to the HTML output:

document.write("Hello World!");
Try it Yourself »

Write some HTML elements directly to the HTML output:

document.write("<h2>Hello World!</h2><p>Have a nice day!</p>");
Try it Yourself »

Using document.write() after a document is loaded, deletes all existing HTML:

// This should be avoided:
function myFunction() {
  document.write("Hello World!");
}
Try it Yourself »

More examples below.


Definition and Usage

The write() method writes directly to an open (HTML) document stream.

Warning

The write() method deletes all existing HTML when used on a loaded document.

The write() method cannot be used in XHTML or XML.

Note

The write() method is most often used to write to output streams opened by the the open() method.

See Also:

The Document open() Method

The Document close() Method

The Document writeln() Method


Syntax

document.write(exp1, exp2, ..., expN)

Parameters

Parameter Description
exp1,... Optional.
The output stream.
Multiple arguments are appended to the document in order of occurrence.

Return Value

NONE

More Examples

Write a date object directly to the HTML ouput:

document.write(Date());
Try it Yourself »

Open an output stream, add some HTML, then close the output stream:

document.open();
document.write("<h1>Hello World</h1>");
document.close();
Try it Yourself »

Open a new window and write some HTML into it:

const myWindow = window.open();
myWindow.document.write("<h1>New Window</h1>");
myWindow.document.write("<p>Hello World!</p>");
Try it Yourself »

The Difference Between write() and writeln()

The writeln( ) method is only useful when writing to text documents (type=".txt").

Example

document.write("Hello World!");
document.write("Have a nice day!");
document.write("<br>");
document.writeln("Hello World!");
document.writeln("Have a nice day!");
Try it Yourself »

Note

It makes no sense to use writeln() in HTML.

It is only useful when writing to text documents (type=".txt").

Newline characters are ignored in HTML.

If you want new lines in HTML, you must use paragraphs or <br>:

Examples

document.write("Hello World!");
document.write("<br>");
document.write("Have a nice day!");
Try it Yourself »
document.write("<p>Hello World!</p>");
document.write("<p>Have a nice day!</p>");
Try it Yourself »

Browser Support

document.write is supported in all browsers:

Chrome Edge Firefox Safari Opera IE
Yes Yes Yes Yes Yes Yes