This commit is contained in:
罗祥
2019-12-13 17:13:05 +08:00
parent 435659b954
commit 8315420e47
13 changed files with 136 additions and 53 deletions

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@ -0,0 +1,13 @@
function test(flag) {
if (flag) {
var value = "blue";
console.log(value);
} else {
console.log(value);
}
console.log(value);
}
test(true);
test(false);

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@ -0,0 +1,13 @@
function test(flag) {
if (flag) {
let value = "blue";
console.log(value);
} else {
console.log(value); //value在此处不能访问
}
console.log(value); //value在此处不能访问
}
test(true);
test(false);

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@ -0,0 +1,5 @@
(function test() {
console.log(typeof value); // 引用错误
let value = "blue";
console.log(value);
})();

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@ -0,0 +1,5 @@
console.log(typeof value);
(function test() {
let value = "blue";
console.log(value);
})();

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@ -0,0 +1,9 @@
let list = [];
for (var i = 0; i < 10; i++) {
list.push(function () {
console.log(i);
});
}
list.forEach(function (func) {
func();
});

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@ -0,0 +1,9 @@
let list = [];
for (let i = 0; i < 10; i++) {
list.push(function () {
console.log(i);
});
}
list.forEach(function (func) {
func();
});