And here is a filter for sorting by size / length:
/*\
title: $:/core/modules/filters/lsort.js
type: application/javascript
module-type: filteroperator
Filter operator for sorting
lsort[] : sort by tiddler size
lsort[fieldname] : sort by length of fieldname's value
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
/*
Export our filter function
*/
exports.lsort = function(source,operator,options) {
var isDescending = operator.prefix === "!";
var results = [];
if(operator.operand === "") {
source(function(tiddler,title) {
var len = $tw.wiki.getTiddlerAsJson(title).length;
results.push( { "title": title, "len": len } );
});
}
else {
source(function(tiddler,title) {
var tdlr = $tw.wiki.getTiddler(title);
var len = 0;
if(tdlr) {
len = (tdlr.fields[operator.operand] || "").length;
}
results.push( { "title": title, "len": len } );
});
}
results.sort(function(a,b) {
return isDescending ? b.len - a.len : a.len - b.len;
});
for( var i = results.length; i--;) {
results[i] = results[i].title;
}
return results;
};
})();
Example usage to sort by descending tiddler size:
<$list filter="[!lsort[]]">
<$view field="title"/>: <$macrocall $name="length" tiddler={{!!title}}/>
</$list>
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