I'm horrid with proposals, but this seems like a missing hole and I
couldn't find a previous mention of it.
Looking at the Object support methods it seems that the only thing that
doesn't exist is a (simple) way to clone an object and all of its members.
Ideally would allow creation of immutable and/or deep/shallow clones of
existing Object/Array/RegExp/Date/...
Basic shim (most likely not perfect):
Object.clone = function(src){
if(!src || typeof(src) !== 'object'){
return src;
}
if(src instanceof Date){
return new Date(src);
}
if(src instanceof Array){
return src.map((item)=>clone(item));
}
if(src instanceof RegExp){
return new RegExp(src);
}
var temp = (src.prototype)?Object.create(src.prototype):new
src.constructor();
Object.keys(src).forEach((key)=>{temp[key] = Object.clone(src[key]);});
return temp;
};
Thoughts?
- Jeremy
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