javascript - 在 Canvas/jQuery 中使用变量作为值

Question

我的网站上有以下内容...

     // Move to 'start' element
    .moveTo(400, 50, {name: "one"})
    // Line to 'description' element
    .lineTo(1600, 50, {name: "two"})
    // Arc down and line to 'syntax'
    .lineTo(3200, 50, {name: "three"})
    // Continue line to 'scrollbar'
    .lineTo(3200, 50, {name: "four"})

我希望每个函数中的第一个值成为一个变量，然后相应地倍增。我试过以下没有运气，但我想知道这是否可能？

    var width = $(window).width();

    // Move to 'start' element
    .moveTo(width, 50, {name: "one"})
    // Line to 'description' element
    .lineTo(width * 2, 50, {name: "two"})
    // Arc down and line to 'syntax'
    .lineTo(width * 3, 50, {name: "three"})
    // Continue line to 'scrollbar'
    .lineTo(width * 4, 50, {name: "four"})