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Node.js Util 模块

❮ 内置模块


示例

使用参数“Linus”和“6”格式化字符串

var util = require('util');
var txt = '祝贺 %s 的第 %d 个生日!';
var result = util.format(txt, 'Linus', 6);

console.log(result);
运行示例 »

定义和用法

Util 模块提供了一些实用函数。


语法

在应用程序中包含 Util 模块的语法

var util = require('util');

Util 属性和方法

方法 描述
debuglog() 将调试消息写入错误对象
deprecate() 将指定函数标记为已弃用
format() 使用指定参数格式化指定的字符串
inherits() 将一个函数的方法继承到另一个函数中
inspect() 检查指定的对象并将其作为字符串返回

❮ 内置模块

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