Function snake_case

test/angular/1.5/angular.js:1879–1884

(name, separator)

var SNAKE_CASE_REGEXP = /[A-Z]/g;
function snake_case(name, separator) {
  separator = separator || '_';
  return name.replace(SNAKE_CASE_REGEXP, function(letter, pos) {
    return (pos ? separator : '') + letter.toLowerCase();
  });
}

var bindJQueryFired = false;
function bindJQuery() {