what is ... in javascript
function sum(...numbers) {
return numbers.reduce((accumulator, current) => {
return accumulator += current;
});
};
sum(1,2) // 3
sum(1,2,3,4,5) // 15
what is ... in javascript
function sum(...numbers) {
return numbers.reduce((accumulator, current) => {
return accumulator += current;
});
};
sum(1,2) // 3
sum(1,2,3,4,5) // 15
js !==
var x = 5;
// === equal value and equal type
// e.g. 1.
x === 5 returns true
// e.g. 2.
x === "5" returns false
// !== not equal value or not equal type
// e.g. 1.
x !== 5 returns false
// e.g. 2.
x !== "5" returns true
// e.g. 3.
x !== 8 returns true
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