Is it possible to design a function that has an array like the below and use an if statement to check if the type is equal to the following in any of my categories in my array below and return its associate category code?
Example:
function CheckCategory(type) {
array =
[NOTES, CAT-A],
[BOOKS, CAT-B],
[MUSIC, CAT-C],
[SOFTWARE, CAT-D]
if (type == "NOTES") { return "CAT-A" }
}
What about
var CatTable={"NOTES": "CAT-A", "BOOKS": "CAT-B", "MUSIC": "CAT-C", "SOFTWARE": "CAT-D"};
function CheckCategory(type) {
if (CatTable[type]) return CatTable[type];
else return "UNKNOWN CATEGORY"
}
CatTable global (or at least outside of CheckCategory)?
You could declare your array variable as a two-dimensional array (an array of arrays):
function checkCategory(type) {
var array = [
['NOTES', 'CAT-A'],
['BOOKS', 'CAT-B'],
['MUSIC', 'CAT-C'],
['SOFTWARE', 'CAT-D']
];
// Then, simply loop over your array and check for the type
for (var i = 0; i < array.length; i++) {
if (type == array[i][0]) {
// It will return the CAT-X of the matching type
return array[i][1];
}
}
}
Also, you could declare your variable as an object, and return the value of type property:
function checkCategory(type) {
var values = {
NOTES: 'CAT-A',
BOOKS: 'CAT-B',
MUSIC: 'CAT-C',
SOFTWARE: 'CAT-D'
}
return values[type];
}
function CheckCategory(type) {
var data = [
['NOTES', 'CAT-A'],
['BOOKS', 'CAT-B'],
['MUSIC', 'CAT-C'],
['SOFTWARE', 'CAT-D']
];
for( i = 0; i < data.length; i++) {
if (data[i][0] == type) {
return data[i][1];
}
}
return "Not found";
}
