// badfunction sayHi(name) { ?return ‘How are you, ‘ + name + ‘?‘;}// badfunction sayHi(name) { ?return [‘How are you, ‘, name, ‘?‘].join();}// badfunction sayHi(name) { ?return `How are you, ${ name }?`;}// goodfunction sayHi(name) { ?return `How are you, ${name}?`;}js build up string
原文地址：https://www.cnblogs.com/Sir-Lin/p/8622849.html