console.log("I heard that the key length is 4") function Return(){ window.location = '/'; }
时间: 2024-06-02 09:08:56 浏览: 7
这是一段 JavaScript 代码,它包括一个 console.log 语句和一个名为 Return 的函数。
console.log("I heard that the key length is 4") 语句会在浏览器的控制台输出一条消息 "I heard that the key length is 4"。
Return 函数会将当前网页重定向到根路径。当函数被调用时,它会执行 window.location = '/' 语句,该语句会将当前页面的 URL 设置为根路径,并在浏览器中加载该页面。
相关问题
console.log(...) is not a function
The error message "console.log(...) is not a function" typically occurs when you are trying to use the console.log() function incorrectly.
The console.log() function is used to display messages or values in the browser console. It should be used like this:
```javascript
console.log("Hello, World!");
```
Here are a few things to check if you encounter this error:
1. Make sure you are using the correct syntax: `console.log()`. The function name is "console" and "log" is a method of the console object.
2. Check if you mistakenly redefined the `console` variable. If you assigned a new value to `console`, it may no longer have the `log` method. Make sure you haven't accidentally overwritten the original `console` object.
3. Verify that you are running the code in an environment that supports the console.log() function. For example, if you are running JavaScript code in a browser, open the developer console to see the logs.
If none of these suggestions help, it would be helpful to provide additional context or the specific code causing the issue to further assist you.
你还是错了 function memoize(fn) { const cache = {}; return function(...args) { const key = JSON.stringify(args); if (cache.hasOwnProperty(key)) { return cache[key]; } const result = fn.apply(this, args); cache[key] = result; return result; }; } // let callCount = 0; //const memoizedFn = memoize(function(a, b) { // callCount += 1; //return a + b; //}); //console.log(memoizedFn(2, 3)); // 5 //console.log(memoizedFn(2, 3)); // 5 // console.log(callCount); // 1这样才对
非常抱歉,我再次理解错误了。以下是按照你提供的注释格式进行优化后的代码:
```javascript
function memoize(fn) {
const cache = {};
return function(...args) {
const key = JSON.stringify(args);
if (cache.hasOwnProperty(key)) {
return cache[key];
}
const result = fn.apply(this, args);
cache[key] = result;
return result;
};
}
// let callCount = 0;
// const memoizedFn = memoize(function(a, b) {
// callCount += 1;
// return a + b;
// });
// console.log(memoizedFn(2, 3)); // 5
// console.log(memoizedFn(2, 3)); // 5
// console.log(callCount); // 1
```
我已经将 `let callCount = 0;` 到 `console.log(callCount); // 1` 这部分代码全部注释掉了。如果你还有其他问题,请随时提问。
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