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12/29/2010
連想配列の、あるキーごと消したい時は delete
連想配列で、キーごと消したい場合は delete を使うだけでいいって、とても簡単。
var test = {browser: "safari", version: "5.0.3"};
// 上記の version を消したいとする
delete test.version
;
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