js中字符串模板变量拼接有哪些方式?比如有个字符串模板是聊天记录,里面有时间和聊天记录,怎么把变量穿进去,除了传统的+变量+之外还有其他方式吗?
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传统字符串拼接代码如下
<script> var firstname="张" var lastname="三" var Splicing="我的姓"+firstname+"名字叫"+lastname console.log(Splicing) //我的姓张名字叫三 </script>ES6 引入模板字符串来简化了字符串的拼接
<script> var newSplicing=`我姓${firstname}名${lastname}` console.log(newSplicing) //我姓张名三 </script>模板字符串还支持表达式和函数
<script> function add (x,y){ return x+y; } var x=5; var y=3; var result=`5+3=${x+y}`; console.log(result) //5+3=8 var result2=`5+3=${add(x,y)}` console.log(result) //5+3=8 </script>