I have a JS Object:
var testObj = new Object();
that has a property called volume1, so
testObj.volume1
has a value. How would I go about accessing that property by using something along the lines of
testObj.volume + "1"
To give it more context, the object actually has more properties, like
testObj.volume1, testObj.volume2 and testObj.volume3
and I want to access them using some iteration. I've tried playing with the window[] element, but have had not much success.
Thanks!
testObj["volume" + 1]
but you actually want an array here
testObj.volume = [...]
testObj.volume[1] = whatever
Use something in the fashion of testObj["volume" + "1"] ;)
The notations object.property and object["property"] are (almost) equivalent in javascript.
You can use for loop with in operation.
for(var PropName in testObj) {
var PropValue = testObj[PropName];
....
}In case, you only want the property with the name started with 'value' only, you can also do this:
for(var PropName in testObj) {
if (!/^value[0-9]$/.match(PropName))
continue;
var PropValue = testObj[PropName];
....
}OR if the number after the 'value' is always continuous you can just use a basic for loop.
for(var I = 0; I <= LastIndex; I++) {
var PropName = "value" + I;
var PropValue = testObj[PropName];
....
}Hope this helps.
