Bar charts in Sketch? Yep.

README.md

This is a Sketch script to make bar charts.

Here's how to run it:

1. Make a selection of only shapes with names in the format:

(anything)value={number}

1. Press Ctrl-Shift-K to bring up the "Run Custom Script" dialog.
2. Copy and paste the script into the top text area.
3. Press the Run button.
4. Profit!

bars.cocoascript.js

var items = map(context.selection, function(shape) {
  return {
    shape: shape,
    value: getValue(shape),
    size: shape.frame().width()
  };
});

var min = 0;
var max = items.reduce(function(memo, d) {
  return Math.max(memo, d.value);
}, min);

var maxSize = items.reduce(function(memo, d) {
  return Math.max(memo, d.size);
}, 0);

items.forEach(function(d) {
  var size = (d.value - min) / (max - min);
  d.shape.frame().width = Math.max(size * maxSize, 0.5);
});

function getValue(shape) {
  var match = shape.name().match(/value=(.+)\b/);
  return (match ? +match[1] : 0) || 0;
}

function forEach(array, fn) {
  var iter = array.objectEnumerator();
  var item, i = 0;
  while (item = iter.nextObject()) {
    fn(item, i++);
  }
}

function map(array, fn) {
  var values = [];
  forEach(array, function(d, i) {
    values.push(fn(d, i));
  });
  return values;
}