📜  Underscore.js _.sub() 方法

📅  最后修改于: 2022-05-13 01:56:42.619000             🧑  作者: Mango

Underscore.js _.sub() 方法

这 _。 sub () 方法 r返回所有给定参数的差值。

句法:

_.sub( val1, val2, ..., valn );

参数:此方法返回 n 个值以对其进行操作。

返回值:此方法返回所有给定参数的差值。

注意:这在普通 JavaScript 中不起作用,因为它需要安装 underscore.js contrib 库。 Underscore.js contrib 库可以使用npm install underscore-contrib –save 安装。

示例 1:

Javascript
// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var diff  = _.sub( 10, 2, 4, 1 );
  
console.log("The Difference  is : ", diff);


Javascript
// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var diff  = _.sub( 10 );
  
console.log("The Difference  is : ", diff);


Javascript
// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var diff  = _.sub( 1, 3, 5, 7, 9, 99, 100 );
  
console.log("The Difference  is : ", diff);


输出:

The Difference  is :  3

示例 2:

Javascript

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var diff  = _.sub( 10 );
  
console.log("The Difference  is : ", diff);

输出:

The Difference  is :  10

示例 3:

Javascript

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var diff  = _.sub( 1, 3, 5, 7, 9, 99, 100 );
  
console.log("The Difference  is : ", diff);

输出:

The Difference  is :  -222