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첫번째 사례
var a = 1;
console.log(a);
// some code
function someAddFunc(b) {
a = a + b;
}
// ...some code
console.log(a);두번째 사례
Last updated
var a = 1;
console.log(a);
// some code
function someAddFunc(b) {
a = a + b;
}
// ...some code
console.log(a);Last updated
function someAddFunc2(a, b) {
a = a || 1;
b = b || 2;
return a + b;
}
console.log(someAddFunc2()); //3
console.log(someAddFunc2(2, 2)); //4function someAddFunc2(a = 1, b = 2) {
return a + b;
}
console.log(someAddFunc2()); //3
console.log(someAddFunc2(2, 2)); //4