🤖 chore: Lint source files.

These changes were automatically generated by a transform whose code can be found at:
  - https://github.com/make-github-pseudonymous-again/rejuvenate/blob/9b50c2a1d7e9ab7b4bc9c9ff88892e98c5f62244/src/transforms/sources:initial-lint.js
Please contact the author of the transform if you believe there was an error.

Author: a-flying-potato

doc/scripts/header.js

@@ -1,34 +1,31 @@
-var domReady = function(callback) {
-	var state = document.readyState ;
-    if ( state === 'interactive' || state === 'complete' ) {
-		callback() ;
-	}
-	else {
+const domReady = function (callback) {
+	const state = document.readyState;
+	if (state === 'interactive' || state === 'complete') {
+		callback();
+	} else {
 		document.addEventListener('DOMContentLoaded', callback);
 	}
-} ;
-
+};
 
-domReady(function(){
-
-	var projectname = document.createElement('a');
+domReady(function () {
+	const projectname = document.createElement('a');
 	projectname.classList.add('project-name');
 	projectname.text = 'data-structure/skip-list';
-	projectname.href = './index.html' ;
+	projectname.href = './index.html';
 
-	var header = document.getElementsByTagName('header')[0] ;
-	header.insertBefore(projectname,header.firstChild);
+	const header = document.querySelectorAll('header')[0];
+	header.insertBefore(projectname, header.firstChild);
 
-	var testlink = document.querySelector('header > a[data-ice="testLink"]') ;
-	testlink.href = 'https://coveralls.io/github/data-structures-and-algorithms/skip-list' ;
-	testlink.target = '_BLANK' ;
+	const testlink = document.querySelector('header > a[data-ice="testLink"]');
+	testlink.href =
+		'https://coveralls.io/github/data-structures-and-algorithms/skip-list';
+	testlink.target = '_BLANK';
 
-	var searchBox = document.querySelector('.search-box');
-	var input = document.querySelector('.search-input');
+	const searchBox = document.querySelector('.search-box');
+	const input = document.querySelector('.search-input');
 
-	// active search box when focus on searchBox.
-	input.addEventListener('focus', function(){
+	// Active search box when focus on searchBox.
+	input.addEventListener('focus', function () {
 		searchBox.classList.add('active');
 	});
-
 });