I'm trying to make a function to filter some data using OR/AND logical operator depending on what the user selects. That means I need to use Array.prototype.every (AND) or Array.property,some (OR) to fullfill my requirement.
To avoid code redundancy I was trying to do something like this:
const functionApplied = condition === 'ALL'
? myArray.every
: myArray.some;
functionApplied(item => {
... aux code ...
})
functionApplied.call(item => {
... aux code ...
})
Is there an analogous way to do it like this?
I know I could do something like this, but I'm just curious about above sintax...
const auxFunction = (item) => {...};
if (condition === 'ALL') {
myArray.every(item => auxFunction(item));
} else {
myArray.some(item => auxFunction(item));
}
You can definitely do something similar to what you're hoping to achieve. Here's one way:
function checkCondition(condition, booleanFunc, myArray) {
const functionApplied = condition === 'ALL'
? myArray.every.bind(myArray)
: myArray.some.bind(myArray);
return functionApplied(booleanFunc);
}
console.log(checkCondition('ANY', (item) => {return item > 2}, [1,4,5,6]));
console.log(checkCondition('ANY', (item) => {return item > 2}, [4,5,6]));
console.log(checkCondition('ANY', (item) => {return item > 2}, [1,2]));
console.log(checkCondition('ALL', (item) => {return item > 2}, [1,4,5,6]));
console.log(checkCondition('ALL', (item) => {return item > 2}, [4,5,6]));VLAZ comment is another good direction.
You can use a variable holding the property name, and then use dynamic property access.
function functionApplied(condition) {
return functionApplied === 'ALL' ? 'every' : 'some';
}
let result = myArray[functionApplied(condition)](item => { ... });Yep, VLAZ comment is the way I wanted, this works:
const functionApplied = condition === 'ALL'
? Array.prototype.every
: Array.prototype.some;
functionApplied.call(myArray, item => {
... aux code
Thanks everyone for your quick answers :)