Fix map and spread

src/gdash/scripts/_array_of/_array_of.gml

@@ -12,7 +12,7 @@ function _array_of() {
 	// => ['hello', 'world', 'i', 'am', 'an', 'array'];
 	*/
 
-	var result;
+	var result = [];
 
 	for (i = argument_count-1; i >= 0; i--) {
 	    result[i] = argument[i];

src/gdash/scripts/_backward/_backward.gml

@@ -12,7 +12,7 @@ function _backward(arr) {
 	*/
 
 	var len;
-	var result;
+	var result = [];
 
 	len = array_length(arr);
 

src/gdash/scripts/_chunk/_chunk.gml

@@ -19,7 +19,7 @@ function _chunk(arr, size) {
 
 	var i;
 	var len;
-	var result;
+	var result = [];
 
 	if (size == 0) return array_create(0);
 

src/gdash/scripts/_collect/_collect.gml

@@ -10,7 +10,7 @@ function _collect(object) {
 	// => [10001, 10002, 10005]
 	*/
 
-	var result;
+	var result = [];
 
 	for (var i = instance_number(object); i >= 0; i--) {
 	    result[i] = instance_find(object, i);

src/gdash/scripts/_difference/_difference.gml

@@ -21,17 +21,17 @@ function _difference() {
 	var n;
 	var arr;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
-	set = ds_map_create();
+	tempSet = ds_map_create();
 
 	for (i = 1; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
-	        if (set[? arr[j]] != 1) {
-	            set[? arr[j]] = 1;
+	        if (tempSet[? arr[j]] != 1) {
+	            tempSet[? arr[j]] = 1;
 	        }
 	    }
 	}
@@ -42,12 +42,12 @@ function _difference() {
 	result = array_create(0);
 
 	for (i = 0; i < len; i++) {
-		if (set[? arr[i]] != 1) {
+		if (tempSet[? arr[i]] != 1) {
 			result[n++] = arr[i];	
 		}
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_difference_by/_difference_by.gml

@@ -27,19 +27,19 @@ function _difference_by() {
 	var crit;
 	var iter;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
 	iter = argument[argument_count - 1];
-	set  = ds_map_create();
+	tempSet  = ds_map_create();
 
 	for (i = 1; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
 			crit = script_execute(iter, arr[j]);
-	        if (set[? crit] != 1) {
-	            set[? crit] = 1;
+	        if (tempSet[? crit] != 1) {
+	            tempSet[? crit] = 1;
 	        }
 	    }
 	}
@@ -51,12 +51,12 @@ function _difference_by() {
 
 	for (i = 0; i < len; i++) {
 		crit = script_execute(iter, arr[i]);
-		if (set[? crit] != 1) {
+		if (tempSet[? crit] != 1) {
 			result[n++] = arr[i];	
 		}
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_drop/_drop.gml

@@ -14,7 +14,7 @@ function _drop(arr, num) {
 	var i;
 	var n;
 	var len;
-	var result;
+	var result = [];
 
 	if (num == 0) return arr;
 

src/gdash/scripts/_drop_right/_drop_right.gml

@@ -14,7 +14,7 @@ function _drop_right(arr, num) {
 	var i;
 	var n;
 	var len;
-	var result;
+	var result = [];
 
 	if (num == 0) return arr;
 

src/gdash/scripts/_filter/_filter.gml

@@ -12,7 +12,7 @@ function _filter(collection, filterMethod) {
 	// => [0, 1]
 	*/
 
-	var result;
+	var result = [];
 	var j = 0;
 	var type = _type_of(collection);
 

src/gdash/scripts/_intersection/_intersection.gml

@@ -24,17 +24,17 @@ function _intersection() {
 	var n;
 	var arr;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
-	set = ds_map_create();
+	tempSet = ds_map_create();
 
 	for (i = 1; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
-	        if (i == 1 || set[? arr[j]] == i - 1) {
-	            set[? arr[j]] = i;
+	        if (i == 1 || tempSet[? arr[j]] == i - 1) {
+	            tempSet[? arr[j]] = i;
 	        }
 	    }
 	}
@@ -45,13 +45,13 @@ function _intersection() {
 	result = array_create(0);
 
 	for (i = 0; i < len; i++) {
-	    if (set[? arr[i]] == argument_count - 1) {
-	        set[? arr[i]]++;
+	    if (tempSet[? arr[i]] == argument_count - 1) {
+	        tempSet[? arr[i]]++;
 	        result[n++] = arr[i];
 	    }
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_intersection_by/_intersection_by.gml

@@ -25,19 +25,19 @@ function _intersection_by() {
 	var crit;
 	var iter;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
 	iter = argument[argument_count - 1];
-	set = ds_map_create();
+	tempSet = ds_map_create();
 
 	for (i = 1; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
 			crit = script_execute(iter, arr[j]);
-	        if (i == 1 || set[? crit] == i - 1) {
-	            set[? crit] = i;
+	        if (i == 1 || tempSet[? crit] == i - 1) {
+	            tempSet[? crit] = i;
 	        }
 	    }
 	}
@@ -49,13 +49,13 @@ function _intersection_by() {
 
 	for (i = 0; i < len; i++) {
 		crit = script_execute(iter, arr[i]);
-	    if (set[? crit] == argument_count - 2) {
-	        set[? crit]++;
+	    if (tempSet[? crit] == argument_count - 2) {
+	        tempSet[? crit]++;
 	        result[n++] = arr[i];
 	    }
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_map/_map.gml

@@ -7,12 +7,10 @@
 function _map() {
 	/*
 	@example
-
 	var arr;
 	arr[0] = 1; arr[1] = 2;
 	_map(arr, doubleValue);
 	// => [2, 4];
-
 	var map = ds_map_create();
 	ds_map_add(map, 'hello', 6);
 	ds_map_add(map, 'world', 10);
@@ -23,7 +21,7 @@ function _map() {
 	var collection = argument[0];
 	var func = argument[1];
 	var type = "array";
-	var result;
+	var result = [];
 
 	if (argument_count == 3) {
 	    type = argument[2];
@@ -47,4 +45,4 @@ function _map() {
 	    }
 	    return result;
 	}
-}
+}

src/gdash/scripts/_slice/_slice.gml

@@ -13,7 +13,7 @@ function _slice() {
 	// => true
 	*/
 
-	var result;
+	var result = [];
 	var array = argument[0];
 	var starti = argument[1];
 	var endi = 0;

src/gdash/scripts/_split/_split.gml

@@ -14,7 +14,7 @@ function _split(inputString, splitter) {
 	*/
 
 	var splitterLength = string_length(splitter);
-	var result;
+	var result = [];
 	var splitterLocation;
 	var part;
 	var count = 0;

src/gdash/scripts/_spread/_spread.gml

@@ -49,10 +49,4 @@ function _spread() {
 	  case 15:
 	    return func(args[@ 0], args[@ 1], args[@ 2], args[@ 3], args[@ 4], args[@ 5], args[@ 6], args[@ 7], args[@ 8], args[@ 9], args[@ 10], args[@ 11], args[@ 12], args[@ 13], args[@ 14]);
 	}
-
-
-
-
-
-
-}
+}

src/gdash/scripts/_union/_union.gml

@@ -24,25 +24,25 @@ function _union() {
 	var n;
 	var arr;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
 	n = 0;
-	set = ds_map_create();
+	tempSet = ds_map_create();
 	result = array_create(0);
 
 	for (i = 0; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
-	        if (set[? arr[j]] != 1) {
-	            set[? arr[j]] = 1;
+	        if (tempSet[? arr[j]] != 1) {
+	            tempSet[? arr[j]] = 1;
 	            result[n++] = arr[j];
 	        }
 	    }
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_union_by/_union_by.gml

@@ -25,27 +25,27 @@ function _union_by() {
 	var crit;
 	var iter;
 	var len;
-	var set;
-	var result;
+	var tempSet;
+	var result = [];
 
 	n = 0;
 	iter = argument[argument_count - 1];
-	set  = ds_map_create();
+	tempSet  = ds_map_create();
 	result = array_create(0);
 
 	for (i = 0; i < argument_count; i++) {
 	    arr = argument[i];
 	    len = array_length(arr);
 	    for (j = 0; j < len; j++) {
 			crit = script_execute(iter, arr[j]);
-	        if (set[? crit] != 1) {
-	            set[? crit] = 1;
+	        if (tempSet[? crit] != 1) {
+	            tempSet[? crit] = 1;
 	            result[n++] = arr[j];
 	        }
 	    }
 	}
 
-	ds_map_destroy(set);
+	ds_map_destroy(tempSet);
 	return result;
 
 

src/gdash/scripts/_unzip/_unzip.gml

@@ -19,7 +19,7 @@ function _unzip(arr) {
 	var j;
 	var len;
 	var num;
-	var result;
+	var result = [];
 
 	len = array_length(arr);
 	num = array_length(arr[0]);

src/gdash/scripts/_without/_without.gml

@@ -20,7 +20,7 @@ function _without() {
 	var arr;
 	var match;
 	var len;
-	var result;
+	var result = [];
 
 	n = 0;
 	arr = argument[0];

src/gdash/scripts/_zip/_zip.gml

@@ -23,7 +23,7 @@ function _zip() {
 	var j;
 	var arr;
 	var len;
-	var result;
+	var result = [];
 
 	len = array_length(argument[0]);
 	for (i = 1; i < argument_count; i++)