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GASにおける日付比較メモ

Posted at

GASにおける日付比較メモ

自分でググってもわかりにくい解説が多かったのでシンプルメモ

キモの部分

1日は「1000 * 60 * 60 * 24」である
1秒 = 1000
1分 = 1000 x 60秒
1時間 = 1000 x 60秒 x 60分
1日 = 1000 x 60秒 x 60分 x 24時間

getTime

実際のコード

test.js
function DayCheck(){
	// スプレッドシート取得
	const ss =SpreadsheetApp.getActiveSpreadsheet();
	// シート取得
	const sf = ss.getSheetByName('シート1');
    // セルから日付取得
	var daycell = sf.getRange(1,1).getValues();
    // 1日
    const days = 1000 * 60 * 60 * 24;
    // 今日の日付
    var today_ = new Date();
    // 今日の日付とセルの日付を比較
    var diff = today_.getTime() - daycell.getTime();
    // 1日以上差がある場合
    if( today_.getTime() - daycell.getTime() > days ){
        console.log( "1日以上差があるよ!");
    }
}
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