the front-end rookie asks everyone to help analyze this code:
b = function a() {
a = 10;
console.log(a);
}
b(); Why does the a = 10 in the function not work?
Thank you!
the front-end rookie asks everyone to help analyze this code:
b = function a() {
a = 10;
console.log(a);
}
b(); Why does the a = 10 in the function not work?
Thank you!
the name of the naming function expression NFE exists in an auxiliary special object (auxiliary special object) and is read-only, so modification in non-strict mode will silently fail. If this function runs in strict mode, it will report an error Uncaught TypeError: Assignment to constant variable.
in strict mode
Uncaught TypeError: Assignment to constant variable.
seems to be unmodifiable
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