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ES6 for in for ofにハマる

Last updated at 2017-08-23Posted at 2017-08-22

es6からbabel-loaderでコンパイルしたらハマったので、そんな方の助けになれば。

es5

for (key in this.scores) {
    console.log(key);
}

es6

for (let key in this.scores) {
    console.log(key);
}

es6

for (let value of this.scores) {
    console.log(value);
}