JavaScript 之下划线转换驼峰和驼峰转换下划线

下划线转换驼峰

function toHump(lineStr) {
  return lineStr.replace(/\_(\w)/g, function (all, letter) {
    return letter.toUpperCase();
  });
}

驼峰转换下划线

function toLine(humpStr) {
  return humpStr.replace(/([A-Z])/g, "_$1").toLowerCase();
}

测试

let lineStr = 'hello_world';
console.log(toHump(lineStr));
let humpStr = 'helloWord';
console.log(toLine(humpStr));

结果

helloWorld
hello_word