Manual:jsparse.php

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MediaWiki file: jsparse.php
Location:	maintenance/
Source code:	master • 1.42.1 • 1.41.2 • 1.39.8
Classes:	JSParseHelper

Details

jsparse.php file is a maintenance script for testing JavaScript validity using JSMin+'s parser. This is a useful feature to run parsing/syntax check on JavaScript files.

Options/Arguments

This script takes the filenames of the files to be validated as arguments, separated by spaces.

Usage

php maintenance/jsparse.php filename

Checking valid file

example.js

$( function () {
	var $longList = $("#longList").addClass("grid_row");
	var $leftDiv = $("<div>");
	var $rightDiv = $("<div>");
	
	$longList.append($leftDiv, $rightDiv);
});

Terminal

$ php maintenance/jsparse.php example.js

example.js OK

Checking invalid file

example.js

$( function () {
	var $longList = $("#longList").addClass("grid_row");
	var $leftDiv = $("<div>");
	var $rightDiv = $("<div>");
	
    // Intentionally removed `);` from the end for the jsparse.php demo
	$longList.append($leftDiv, $rightDiv
});

Terminal

$ php maintenance/jsparse.php example.js

example.js ERROR: Parse error: Missing ) in parenthetical in file 'example.js' on line 7
Failed.

Common error

$filename ERROR: could not read file

This error occurs when the file does not exist or the user running the script does not have permission to read the file.

If the file does exist, check the file permissions. If you are root user, then you can run the script with sudo.