JS 模板字符串的简单实现

[wengjq]

let templateStr = 'I am ${{name}}, age ${{age}}, job ${{job}} ';
let data = {
  name: 'wengjq',
  age: 25,
  job: 'fe'
}

function templateFunc(str, data) {
  let computed = str.replace(/\$\{\{(\w+)\}\}/g, function (match,key) {
    return data[key];
  });
  return computed;
}

console.log(templateFunc(templateStr, data)); // I am wengjq, age 25, job fe