Wicked-Good-Xpath browser example

wgxpath+browser.js

// inject Wicked-Good-Xpath
var script = document.createElement('script');
script.src = "https://github.com/google/wicked-good-xpath/releases/download/1.3.0/wgxpath.install.js";
document.getElementsByTagName('head')[0].appendChild(script);
script.onload=function() {
  console.log("injected")
  // install wgxpath
  wgxpath.install()
  // create expression
  var expressionString = '//*[@class="word-and-pronunciation"]/h1';
  var expression = window.document.createExpression(expressionString);
  // evaluate
  var result = expression.evaluate(window.document,XPathResult.STRING_TYPE);
  console.log(result.stringValue)
}

Uglified with UglifyJS

var script=document.createElement("script");script.src="https://github.com/google/wicked-good-xpath/releases/download/1.3.0/wgxpath.install.js",document.getElementsByTagName("head")[0].appendChild(script),script.onload=function(){console.log("injected"),wgxpath.install();var a='//*[@class="word-and-pronunciation"]/h1',b=window.document.createExpression(a),c=b.evaluate(window.document,XPathResult.STRING_TYPE);console.log(c.stringValue)};