What is the difference between writeln and write in javascript

The difference between writeln and write in javascript: When the writeln() method outputs data in the browser, it will add a newline character at the end of the data for line break; while the write() method outputs data in the browser , does not add a newline character at the end of the data, and therefore cannot wrap.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

Javascript provides two ways to display data directly in the browser. You can use write( ) and writeln( ), which are methods of the document object.

The writeln( ) method is almost the same as the write( ) method. The only difference is that Write cannot wrap, but Writeln can wrap.

writeln( ) will add a newline character after any string provided. The write() method does not add a newline character to the end of the string.

Note: The line breaking effect of writeln cannot be seen on the web page. It is displayed as a space by the browser.

The effect cannot be seen in the HTML file and the JSP source file. Readers can add pre-formatted tags to the tags to view the effect. Browser

    <script>
      document.write("<pre class="brush:php;toolbar:false">write");
      document.writeln("writln");
      document.write("write

");

You can also use the open method to re-open a window to view the test

<script> 
with(window.open()){ 
document.write("write") 
document.writeln("writeln") 
document.writeln("write") 
}
</script>

and then view the web page source file in the pop-up window to see the effect.

[Related recommendations: javascript learning tutorial]

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