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JavaScript: DHTML Insertion Sort

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JavaScript: DHTML Insertion Sort

This page demonstrates the Insertion Sort algorithm.

idcolourrandom
1purple883
2orange547
3orange523
4orange694
5blue538
6red629
7red281
8blue766
9purple849
10red111
11blue616
12green919
13green942
14purple5
15blue931
16orange780
17orange864
18yellow811
19purple588
20orange788
Sort by DESC?

[add rows to TABLE]

How does it work?

For a more detailed discussion on the sorting process, you can refer to the Bubble Sort page. The only difference between the two is the actual sorting algorithm, with the Insertion Sort, in theory, being a little bit faster:

// global variables var parent = null; // 'parent' node var items = new Array(); // array of 'child' nodes var col = 0; // column for sorting function sortTable(tableid, n, desc) { parent = document.getElementById(tableid); col = n; if(parent.nodeName != "TBODY") parent = parent.getElementsByTagName("TBODY")[0]; if(parent.nodeName != "TBODY") return false; // assert: parent is now a TBODY node items = parent.getElementsByTagName("TR"); var N = items.length; // insertion sort for(var j=1; j < N; j++) { for(var i=j; i > 0 && compare(get(i), get(i-1), desc); i--) { exchange(i, i-1); } } }

For more advanced (and complicated) sorting techniques, see the Shell Sort and Quick Sort demonstrations.

< JavaScript

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