dae-mockcli/learn/fun/which.js

mock系统脚手架

const which = require('which');
const chalk = require('chalk');

// 查找系统中用于安装依赖包的命令
function findNpm() {
  const npms = ['tnpm1', 'cnpm1', 'npm1','nodemon1'];
  for (let i = 0; i < npms.length; i++) {
    try {
      // 查找环境变量下指定的可执行文件的第一个实例
      which.sync(npms[i]);

      return npms[i]
    } catch (e) {
    }
  }
  throw new Error(chalk.red('请安装npm'));
}
// console.log(findNpm()) ;
console.log( which.sync("nodemon1"));