How to wrap d3.js labels with ticks?

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function wrap(text, width) {
  text.each(function() {
    var text = d3.select(this),
        words = text.text().split(/s+/).reverse(),
        word,
        line = [],
        lineNumber = 0,
        lineHeight = 1.1, // ems
        y = text.attr("y"),
        x = text.attr("x"),
        dy = parseFloat(text.attr("dy")),
        tspan = text.text(null).append("tspan").attr("x", x).attr("y", y).attr("dy", dy + "em");

    while (word = words.pop()) {
      line.push(word);
      tspan.text(line.join(" "));
      if (tspan.node().getComputedTextLength() > width) {
        line.pop();
        tspan.text(line.join(" "));
        line = [word];
        tspan = text.append("tspan").attr("x", x).attr("y", y).attr("dy", ++lineNumber * lineHeight + dy + "em").text(word);
      }
    }
  });
}

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// Select the tick labels
svg.selectAll(".tick text")
  .call(wrap, 100); // 100 is the width at which to wrap the labels