Gemma https://blog.hatena.ne.jp/Gemma/ Gemmaの日記 https://gemma.hatenadiary.org/ ふつう var a = new Array(10); for (var i=0; i < 10; i++) {a[i] = i;}; ふつう var a = []; for (var i=0; i < 10; i++) {a.push(i);}; prototype.js を使う var a = new Array(10); a.length.times(function (i) {a[i] = i}); var a = $A($R(0,9)); New in JavaScript 1.7 - MDCでは内包表記が使える。 function range(begin, end) { for (l… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fgemma.hatenadiary.org%2Fentry%2F20071111%2F1194790537" title=" javascript で配列 [0..9] を作りたいときどうしてますか? - Gemmaの日記" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2007-11-11 23:15:37 rich https://gemma.hatenadiary.org/entry/20071111/1194790537 1.0 100%