> From: [email protected]
> Date: Tue, 23 Dec 2014 14:55:57 +0800
>
> Given an array of [1,2,3] and other array of [“a”,”b”], it should return
> [1,”a”,2,“b”,3]. (probably a lot of edge cases to cover, but just ignore them
> for now).
I came up with an idea. Symmetric to String.raw, we can have a function that
represents the default procedure.
```js
String.default=(a,...b)=>{
let ret="";
for(let i=0;ret+=a[i],i<b.length;ret+=b[i],i++);
return ret;
};
```
So in semantics, String.default `Template` === `Template`. By introducing this,
we can define a common procedure between tagged and untagged templates:
untagged templates are equivalent to the tagged ones with tag String.default.
When implementing our own template functions, we can use:
```js
function custom(template, ...substitutions){
// Perform actions on substitutions or template
return String.default(template, ...substitutions);
}
```
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