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ksakae1216/変数の巻き上げ

Created June 20, 2016 06:55
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変数の巻き上げ
例１）
console.log(x); // "3" が出力される
var x = 3;
例２）
console.log(x); // "4" が出力される
var x = 3;
var x = 4;
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