Multidimensional array separators in Javascript - Stack Overflow

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I've been searching for a more concise way to represent multidimensional arrays in Javascript, so I'd like to find a way to separate an array using multiple separators, along with Javascript's built-in string.split(separator) method.

For example, the string "what, am, I; doing, here, now" would bee [["what", "am", "I"],["doing", "here", "now"]].

Is there any concise way to implement a function that does this?

var theString = "what, am, I; doing, here, now";
var theArray = getArray(theString, [",", ";"]); //this should return [["what", "am", "I"],["doing", "here", "now"]].

function getArray(theString, separators){
    //convert a string to a multidimensional array, given a list of separators
}

I've been searching for a more concise way to represent multidimensional arrays in Javascript, so I'd like to find a way to separate an array using multiple separators, along with Javascript's built-in string.split(separator) method.

For example, the string "what, am, I; doing, here, now" would bee [["what", "am", "I"],["doing", "here", "now"]].

Is there any concise way to implement a function that does this?

var theString = "what, am, I; doing, here, now";
var theArray = getArray(theString, [",", ";"]); //this should return [["what", "am", "I"],["doing", "here", "now"]].

function getArray(theString, separators){
    //convert a string to a multidimensional array, given a list of separators
}

• javascript

Share Improve this question Follow edited Dec 30, 2012 at 4:27 Anderson Green asked Dec 8, 2012 at 6:27 Anderson GreenAnderson Green 31.9k7070 gold badges210210 silver badges339339 bronze badges

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3 Answers 3

Sorted by: Reset to default 7

LAST EDIT

I was leaving some mas in the words, as @Tom points out. Here's the final code:

var str = "what, am, I; doing, here, now";

var arr = str.split(/\;\s*/g);
for (var i = 0; i < arr.length; i++){
    arr[i] = arr[i].split(/\,\s*/g);
}
console.log(arr);

AND FIDDLE

---

First split on the second separator, then split each member in there on the other separator.

var str = "what, am, I; doing, here, now";

var arr = str.split(';');
for (var i = 0; i < arr.length; i++){
    arr[i] = arr[i].split(' ');
}

LIVE DEMO

Note that you'll have to do a tad bit of cleanup to remove the empty space in the second array, but that should be simple.

---

EDIT -- I was feeling energetic - here's how you kill that annoying leading space

var str = "what, am, I; doing, here, now";

var arr = str.split(';');
for (var i = 0; i < arr.length; i++){
    arr[i] = arr[i].replace(/^\s*/, '').split(' ');
}

UPDATED FIDDLE

---

EDIT - this is why I love SO so much. Per @Nathan, you can just split on the regex and save some trouble

var str = "what, am, I; doing, here, now";

var arr = str.split(/\;\s*/g);
for (var i = 0; i < arr.length; i++){
    arr[i] = arr[i].split(' ');
}
console.log(arr);

UPDATED FIDDLE

This should work:

var theString = "what, am, I; another, string; doing, here, now";
 //this should return [["what", "am", "I"],["doing", "here", "now"]].

function getArray(theString, separators){
    //Firs split
    var strings = theString.replace(/\s+/g, '').split(separators.pop());
    //Second split
        var sep = separators.pop();
        for (var i = 0; i < strings.length; i++) {
            strings[i] = strings[i].split(sep);
        };
    console.log(strings);
    return strings;
}

var theArray = getArray(theString,["," ,";" ]);

Update:

Now the code should work: http://jsfiddle/beTEq/1/

I figured out a solution that can handle any number of separators, based on this answer here.

function getArray(theString, separators) {
    separators = separators.reverse();
    var theArray = theString.split(separators[0]);
    for (var j = 1; j < separators.length; j++) {
        theArray = theArray.map(function mapper(v, i, a) {
            if (typeof v == "string") {
                return v.split(separators[j]);
            } else {
                return v.map(mapper);
            }
        });
    }
    return theArray;
}

console.log(JSON.stringify(getArray("A, b, c; d, e, f;g,h,i'a, b, c;d,e,f", [",", ";", "'"])));
//this will write [[["A"," b"," c"],[" d"," e"," f"],["g","h","i"]],[["a"," b"," c"],["d","e","f"]]] to the console.

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