📜  Underscore.js _.curry3() 方法

📅  最后修改于: 2022-05-13 01:56:40.264000             🧑  作者: Mango

Underscore.js _.curry3() 方法

Underscore.js _.curry3()方法返回给定函数的柯里化版本,但会柯里化恰好三个参数,不多也不少。

句法:

_.curry3( fun )

参数:此方法采用上面列出并在下面讨论的单个参数:

  • fun:这是作为参数传递的给定函数。

返回值:它返回函数的柯里化版本。

注意:要执行以下示例,您必须使用此命令提示符安装underscore-contrib库并执行以下命令。

npm install underscore-contrib

示例 1:

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
// Function
function fun(a, b, c) {
    return a*b*c;
}
  
// Making curried function
var gfgFunc = _.curry3(fun);
  
// Only operates for exactly two arguments
console.log("Multiplication is :", 
    gfgFunc(20)(23)(2));

输出:

Multiplication is : 920

示例 2:

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
// Function
function fun(a, b, c) {
    return a-b-c;
}
  
// Making curried function
var gfgFunc = _.curry3(fun);
  
// Only operates for exactly two arguments
console.log("Subtraction is :", 
    gfgFunc(25)(23)(1));

输出:

Subtraction is : 1

示例 3:

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
// Function
function fun(x, y, z) {
    return arguments;
}
  
// Making curried function
var gfgFunc = _.curry3(fun);
  
// Only operates for exactly three arguments
console.log("Curried Arguments are :", 
    gfgFunc("a")("b")("c"));

输出:

Curried Arguments are : [Arguments] { '0': 'a', '1': 'b', '2': 'c' }

示例 4:

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
// Function
function fun(x, y, z) {
    return arguments;
}
  
// Making curried function
var gfgFunc = _.curry3(fun);
  
// Only operates for exactly three arguments
// For two args, it returns function
console.log(gfgFunc("a")("b"));

输出:

[Function: mustBeUnary]