我想用for循环创建下面的数组
var centres = {
1979: { x: width * 1 / 41, y: height / 2 },
1980: { x: width * 2 / 41, y: height / 2 },
1981: { x: width * 3 / 41, y: height / 2 },
...
}
然后按以下方式访问它:
function nodeYearPos(d) {
return yearCenters[d.year].x;
}
我有以下代码,但仅设置年份...
var yearCenters = Array.from(new Array(2020-1919+1), (x, i) => i + 1919);
for (year = 1919; year <= 2020; year++) {
coords = getCentres(year); // this returns an object in the form {x : x, y : y}
yearCenters[year] = coords;
}
您可以按照gorak的评论进行操作,但可以使用getCenters函数
var yearCenters = Object.fromEntries(Array.from(new Array(2020-1919+1), (x, i) => [i + 1919, getCenters(i + 1919)]));
或者你也可以尝试
var yearCenters = {};
for (year = 1919; year <= 2020; year++) {
coords = getCenters(year);
yearCenters[year] = coords;
}
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我来说两句