I'm using Vue.js and I am wondering how I can call a javascript property in a dynamic way. Let's say I pass an argument to a function like this:
filter: function(items) {
this.countriesToFilter.splice(index, 1);
},
How can I replace the countries in my this.countriesToFilter call in a dynamic way so I end up with essentially:
this.itemsToFilter.splice(index, 1);
Maybe this way?
filter: function(items) {
var whatToFilter = items + 'ToFilter';
this[whatToFilter].splice(index, 1);
},
The answer is yes.
var name = "itemsToFilter";
var myArray = eval("this." + name);
// use myArray
You can also add a safety check so you don't call splice on undefined
if (typeof myArray != 'undefined') {
myArray.splice(index, 1)
}
The only way I can imagine this working is if you pass a string to the function, and interpolate that string into the object-notation, using square-brackets:
filter: function(keyName) {
this[keyName + 'ToFilter']splice(index, 1);
}
If your existing variable, items (from the question), contains a value of relevance within the function then you'd also need to pass that as an argument also:
filter: function(keyName, items) {
this[keyName + 'ToFilter']splice(index, 1);
}
