Created
February 26, 2011 15:29
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Interesting method to do multi-value-testing in JS
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| ({abc:1,def:1,jkl:1}[xyz]) | |
| // nearly the same as: | |
| ( xyz=="abc" || xyz=="def" || xyz=="jkl" ) | |
| // and.... | |
| (function(){switch(pn) { | |
| case "prv":return "previous"; | |
| case "nxt":return "next"; | |
| }})() | |
| // returns the same as: | |
| (pn=="prv"?"previous":(pn=="nxt"?"next":undefined)) | |
| // which returns the same as: | |
| ({"prv":"previous","nxt":"next"}[pn]) | |
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