how to understand expressions that are related to the parameters of a function?
function a(x = y, y) {
console.log(x); // y is not defined
}
function b(x, y = x){
console.log(y); // 1
}
a(undefined, 1)
b(1, undefined)
how to understand expressions that are related to the parameters of a function?
function a(x = y, y) {
console.log(x); // y is not defined
}
function b(x, y = x){
console.log(y); // 1
}
a(undefined, 1)
b(1, undefined)x = y, ah, assignment,.
y is not defined at this time, and the step oflet y = 1is also passing the parameter y
if you think correctly, the second one can understand
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