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In case of the zeroes and ones, you have to split with "", but in case of the tile-numbers this doesn't work as it would create an array entry for - and 1 when the value should be -1. But luckily you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join("");
tileArray = levelTiles.split(",");

A cleaner way to split (which also removes unnecessary white-space) could be done with a regular expression:

tileArray = levelTiles.split(/\s*,\s*/);

To split the Bitstring and get rid of the white-space I suggest you use this instead:

bitArray = bitString.replace(/\s+/g, "").split("");

In case of the zeroes and ones, you have to split with "", but in case of the tile-numbers this doesn't work as it would create an array entry for - and 1 when the value should be -1. But luckily you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join(",");
tileArray = levelTiles.split(",");

A cleaner way to split (which also removes unnecessary white-space) could be done with a regular expression:

tileArray = levelTiles.replace(/\n\r?/g,",").split(/\s*,\s*/);

To split the Bitstring and get rid of the white-space I suggest you use this instead:

bitArray = bitString.replace(/\s+/g, "").split("");

In case of the zeroes and ones, you have to split with "" (which will split between every character, so - and 1 will be considered two entries), but in case of the tile-numbers, you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join("");
tileArray = levelTiles.split(",");

A cleaner way to split (which also removes unnecessary white-space) could be done with a regular expression:

tileArray = levelTiles.split(/\s*,\s*/);

In case of the zeroes and ones, you have to split with "", but in case of the tile-numbers this doesn't work as it would create an array entry for - and 1 when the value should be -1. But luckily you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join("");
tileArray = levelTiles.split(",");

A cleaner way to split (which also removes unnecessary white-space) could be done with a regular expression:

tileArray = levelTiles.split(/\s*,\s*/);

To split the Bitstring and get rid of the white-space I suggest you use this instead:

bitArray = bitString.replace(/\s+/g, "").split("");

In case of the zeroes and ones, you have to split with "" (which will split between every character, so - and 1 will be considered two entries), but in case of the tile-numbers, you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join("");
tileArray = levelTiles.split(",");

In case of the zeroes and ones, you have to split with "" (which will split between every character, so - and 1 will be considered two entries), but in case of the tile-numbers, you have a delimiter , which you can use.

So instead of

levelTiles = levelTiles.split("\n").join("");
levelTiles = levelTiles.split(",").join("");
tileArray = levelTiles.split("");

Use:

levelTiles = levelTiles.split("\n").join("");
tileArray = levelTiles.split(",");

A cleaner way to split (which also removes unnecessary white-space) could be done with a regular expression:

tileArray = levelTiles.split(/\s*,\s*/);