📜  Underscore.js _.inc() 方法

📅  最后修改于: 2022-05-13 01:56:33.266000             🧑  作者: Mango

Underscore.js _.inc() 方法

这 _。 inc () 方法 r通过将给定值增加1 来返回结果

句法:

_.inc( value );

参数:此方法接受一个值并递增它们。

返回值:此方法通过将给定值增加1 来返回结果

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 val = 100
var incrVal  = _.inc( val );
  
console.log("The Given value is :",val);
console.log("The Increment of Given value is :",incrVal);


Javascript
// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var val = 51
var incrVal  = _.inc( val );
  
console.log("The Given value is :",val);
console.log("The Increment of Given value is :",incrVal);


输出:

The Given value is : 100
The Increment of Given value is : 101

示例 2:

Javascript

// Defining underscore contrib variable
var _ = require('underscore-contrib'); 
  
var val = 51
var incrVal  = _.inc( val );
  
console.log("The Given value is :",val);
console.log("The Increment of Given value is :",incrVal);

输出:

The Given value is : 51
The Increment of Given value is : 52