Выравнивание изображений в один ряд (чистый JS)

images_in_row.js

function images_in_row(selector) {
  var galleries = document.querySelectorAll(selector);
  var galleryMarginWidth = 5;
  Array.prototype.forEach.call(galleries, function(gallery, index) {
    var images = gallery.getElementsByTagName("img");
    if (images.length == 0) {
      return;
    }
    var galleryWidth = parseFloat(getComputedStyle(gallery).width).toFixed(2);
    var galleryUsableWidth = galleryWidth - (galleryMarginWidth * images.length * 2);
    var minHeight = images[0].naturalHeight;
    var imagesSizes = [];
    Array.prototype.forEach.call(images, function(image, index) {
      imagesSizes.push({
        "width": image.naturalWidth,
        "height": image.naturalHeight,
        "wh": image.naturalWidth / image.naturalHeight,
        "hw": image.naturalHeight / image.naturalWidth
      });
      if (minHeight > image.naturalHeight) {
        minHeight = image.naturalHeight;
      }
    });
    Array.prototype.forEach.call(images, function(image, index) {
      if (minHeight < image.naturalHeight) {
        ratio = minHeight / imagesSizes[index].height;
        newImageSize = {
          "width": imagesSizes[index].width * ratio,
          "height": minHeight,
          "wh": imagesSizes[index].wh,
          "hw": imagesSizes[index].hw
        };
        imagesSizes[index] = newImageSize;
      }
    });
    var summaryWidth = 0;
    imagesSizes.forEach(function(element, index) {
      summaryWidth += imagesSizes[index].width;
    });
    var widthMultiplier = summaryWidth / galleryUsableWidth;
    Array.prototype.forEach.call(images, function(image, index) {
      ratio = minHeight / imagesSizes[index].height;
      newImageSize = {
        "width": imagesSizes[index].width / widthMultiplier,
        "height": imagesSizes[index].height / widthMultiplier,
        "wh": imagesSizes[index].wh,
        "hw": imagesSizes[index].hw
      };
      imagesSizes[index] = newImageSize;
      image.style.width = imagesSizes[index].width + 'px';
      console.log(newImageSize);
    });
  });
}