Creating array of empty strings?

You can get an array defining the size and fill it with some tokens:

const arr = Array(size).fill("");

here's a simpler way using generic protos on Array and String:

"".split.call(Array(1001), ",")

EDIT: There's now even simpler ways, some of which are readable:

Array(1000).fill("");

" ".repeat(999).split(" ");

Update: on newer browsers - use .fill: Array(1000).fill('') will create an array of 1000 empty strings.

Yes, there is a way:

 var n = 1000;
 Array(n).join(".").split("."); // now contains n empty strings.

I'd probably use the loop though, it conveys intent clearer.

function repeat(num,whatTo){
    var arr = [];
    for(var i=0;i<num;i++){
        arr.push(whatTo);
    }
    return arr;
}

That way, it's perfectly clear what's being done and you can reuse it.

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