JavaScript implements Heredoc syntax and a large number of string concatenation implementations

There are heredoc ways to define strings in PHP and Python:

Php:

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$sql =<<<eod SELECT * From pages where Pagename= ' $PN ' EOD;

Python:

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Print "" " This is a example of a string in the Heredoc syntax. This text can span multiple lines """

JS concatenation of a large number of strings no heredoc style operators are more cumbersome:

Splicing Way One:

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var str = " Here's line one and line two Finally, Line three! "; alert (str);

Splicing mode two:

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var __template = ' <tr> ' + ' <td> #salarySN #</td> ' + ' <td> #name #</td> ' + ' <td> #TDR_NAME #</td> ' + ' <td> #TSD_NAME #</td> ' + ' <td> #WORK_STATUS #</td> ' + ' <td> #isleader_display #</td> ' + ' <td> ' + ' <a href= ' javascript:void ( -1) ' > Set role </a> ' + ' </td></tr> ';

JS strings need to break the original string style, each row processing, this is a bit unbearable.

Give a solution:

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function Aheredoc () {/* Hello, world!. I am a JavaScript here document. Use the ' HereDoc ' function to extract me. */} function HereDoc (func) { Return func.tostring (). Split (/n/). Slice (1,-1). Join (' n '); } Console.log (HereDoc (Aheredoc));

uses func.tostring () to get the string that needs to be processed in batches, using split (/n/). Slice (1,-1) to remove the code defined by the two lines of function, and reassemble it.

refer:http://trentrichardson.com/2010/11/11/javascript-heredoc-like-syntax/