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| function( | |
| l, // this will actually be where the events will be stored | |
| u, // placeholder for undefined | |
| r, // placeholder for the current array of events | |
| i // placeholder for the index in the array loop | |
| ){ | |
| // the returned function takes either a name + variably sized arguments, or a name and an event handler | |
| return function(n,f){ | |
| // assign the selected object, and store a shorter version, and assign i for the start of the loop | |
| r=l[n]=l[n]||[],i=-1; | |
| // if the second argument has a call method, we assume this is a subscribe call | |
| if(f&&f.call)r.push(f); | |
| // loop through each subscribed function and call the method with the current arguments | |
| else while(r[++i])r[i].apply(u,arguments); | |
| } | |
| }({}) |
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| function(l,u,r,i){return function(n,f){r=l[n]=l[n]||[],i=-1;if(f&&f.call)r.push(f);else while(r[++i])r[i].apply(u,arguments);}}({}) |
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| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Version 2, December 2004 | |
| Copyright (C) 2011 Arnor Sigurdsson <[email protected]> | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. You just DO WHAT THE FUCK YOU WANT TO. |
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| { | |
| "name": "simplePublishSubscribeLibrary", | |
| "description": "A fully fledged flexible publish/subscribe library", | |
| "keywords": [ | |
| "events", | |
| "publish", | |
| "subscribe", | |
| "meta", | |
| "javascript" | |
| ] | |
| } |
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| <!DOCTYPE html> | |
| <title>publish/subscribe lib in less than 140 characters</title> | |
| <script> | |
| var pubsub = function(l,u,r,i){return function(n,f){r=l[n]=l[n]||[],i=-1;if(f&&f.call)r.push(f);else while(r[++i])r[i].apply(u,arguments);}}({}); | |
| // subscribe to event | |
| pubsub("eat_cookie", function() { | |
| alert("Cookie was eaten"); | |
| }); | |
| // subscribe to another event which expects arguments | |
| pubsub("bake_cake", function(name, arg1, arg2) { | |
| alert("Making a cake from "+arg1+" and "+arg2); | |
| }); | |
| pubsub("bake_cake", function(name, arg1, arg2) { | |
| alert("I don't like baking but if I'd bake I'd use "+arg1+" and "+arg2); | |
| }); | |
| // trigger events | |
| pubsub("eat_cookie"); | |
| pubsub("bake_cake", "eggs", "sugar"); | |
| </script> |
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