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https://github.com/Jermolene/TiddlyWiki5
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0cf5dc699e
Long overdue rewrite to make it simpler, and break the filter operators out into individual modules.
39 lines
830 B
JavaScript
39 lines
830 B
JavaScript
/*\
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title: $:/core/modules/filters/limit.js
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type: application/javascript
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module-type: filteroperator
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Filter operator for chopping the results to a specified maximum number of entries
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Export our filter function
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*/
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exports.limit = function(source,operator,options) {
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var results = [];
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// Convert to an array if necessary
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if(!$tw.utils.isArray(source)) {
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var copy = [];
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$tw.utils.each(source,function(element,title) {
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copy.push(title);
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});
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source = copy;
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}
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// Slice the array if necessary
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var limit = Math.min(source.length,parseInt(operator.operand,10));
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if(operator.prefix === "!") {
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results = source.slice(source.length - limit,limit);
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} else {
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results = source.slice(0,limit);
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}
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return results;
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};
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})();
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