javascript - 将任何字符串转换为驼峰式大小写(Converting any string into camel case)

Question

How can I convert a string into camel case using javascript regex?(如何使用javascript正则表达式将字符串转换为驼峰式？)

EquipmentClass name or Equipment className or equipment class name or Equipment Class Name(EquipmentClass name或Equipment className或equipment class name或Equipment Class Name)

should all become: equipmentClassName .(应该全部变为： equipmentClassName 。)

  ask by Scott Klarenbach translate from so

Answer 1

Looking at your code, you can achieve it with only two replace calls:(查看您的代码，只需两个replace调用即可实现：)

function camelize(str) {
  return str.replace(/(?:^w|[A-Z]|w)/g, function(word, index) {
    return index == 0 ? word.toLowerCase() : word.toUpperCase();
  }).replace(/s+/g, '');
}

camelize("EquipmentClass name");
camelize("Equipment className");
camelize("equipment class name");
camelize("Equipment Class Name");
// all output "equipmentClassName"

Edit: Or in with a single replace call, capturing the white spaces also in the RegExp .(编辑：或通过单个replace调用，也可以在RegExp捕获空白。)

function camelize(str) {
  return str.replace(/(?:^w|[A-Z]|w|s+)/g, function(match, index) {
    if (+match === 0) return ""; // or if (/s+/.test(match)) for white spaces
    return index == 0 ? match.toLowerCase() : match.toUpperCase();
  });
}