declared as function returning a function
时间: 2023-05-01 18:02:48 浏览: 822
b'declared as function returning a function' 的意思是“被声明为返回函数的函数”。这意味着在程序中定义了一个函数,它的返回值是另一个函数。通常这样的函数被称为高阶函数,因为它们操作其他函数作为它们的输入或输出。在某些情况下,这个返回的函数可以被用来进行进一步的计算或操作。
相关问题
function declared implicitly
In JavaScript, functions can be declared implicitly using function expressions. This means that a function can be defined and assigned to a variable without using the `function` keyword. Here's an example:
```
// Implicitly declaring a function using a function expression
const add = function(a, b) {
return a + b;
};
// Calling the implicitly declared function
console.log(add(2, 3)); // Output: 5
```
In the example above, the function `add` is declared implicitly using a function expression. It is assigned to the variable `add`, which can then be used to call the function.
function "printf" declared implicitly
The "printf" function is a standard library function in C programming language used to print formatted output to the console or a file. It is declared in the "stdio.h" header file, and it is not implicitly declared by the compiler, which means that you need to include the "stdio.h" header file explicitly in your program to use the "printf" function.
For example, the following code snippet demonstrates how to use the "printf" function to print a string to the console:
```c
#include <stdio.h>
int main() {
printf("Hello, world!\n");
return 0;
}
```
In this example, we include the "stdio.h" header file, which contains the declaration of the "printf" function. We then call the "printf" function to print the string "Hello, world!" to the console, followed by a newline character (\n). Finally, we return 0 to indicate that the program has executed successfully.