jquery - 对于 jQuery 纯粹主义者 - 简单的数组填充？

Question

• What is the best way to do loops in JavaScript
  • http://blogs.oracle.com/greimer/entry/best_way_to_code_a
  • http://api.jquery.com/jQuery.each/
  • http://api.jquery.com/each/

为了我自己的教育，我仍然希望看到像这样的构造的优雅 jQuery 版本 - 请注意图像文件名是基于 1 而不是基于 0 :

var nofImages = 10; // user defined
var slideShowArray = new Array(nofImages); // cannot use [nofImages] of course
for (var i=0, n=slideShowArray.length;i<n;i++) {
  slideShowArray[i]="/images/image"+(i+1)+".jpg";
}

或者根据上面提到的文章也许应该是

var nofImages = 10; // user defined
var slideShowArray = [];
for (i=nofImages;i>0;i--) {
  slideShowArray[(i-1)]="/images/image"+i+".jpg";
}

谢谢

Answer 1

var slideShowArray = $.map(new Array(10), function(i,j) {
    return '/images/image'+(j+1)+'.jpg';
});

在 Javascript 1.8 中，您将能够更优雅地做到这一点:

var slideShowArray = $.map(new Array(10), function(i,j) '/images/image'+(j+1)+'.jpg');

甚至

$.range = function(first,last,step) {
    step = step || 1;
    if (typeof last == undefined) {
        last = first;
        first = 0;
    }
    return $.map(Array((first-last)/step), function(i,j) {
        return j*step + first;
    });
}

var slideShowArray = ['/images/image'+i+'.jpg' for (i in $.range(1,10))];