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JavaScript 经典实例:第三版
book

JavaScript 经典实例:第三版

by Adam D. Scott, Matthew MacDonald, Shelley Powers
September 2022
Intermediate to advanced
585 pages
8h 17m
Chinese
China Electric Power Press Ltd.
Content preview from JavaScript 经典实例:第三版
Node
模块
495
commonjs: 'moment',
commonjs2: 'moment',
amd: 'moment',
root: 'moment',
}
}
};
这样设置之后,我们的库把
moment
视为一个全局变量。
18.6
对模块做单元测试
18.6.1
问题
你想确保自己的模块功能正常,可供其他人使用。
18.6.2
方案
在制作过程中添加单元测试(
unit test
)。
以下述模块为例。这个模块名为
bbarray
,保存在名为
index.js
的文件中。
const
util = require('util');
const
bbarray = {
concatArray: (str, array) => {
if
(!util.isArray(array) || array.length === 0) {
return
-1;
}
if
(
typeof
str !== 'string') {
return
-1;
}
return
array.map(element => {
return
`${str} ${element}`;
});
},
splitArray: (str, array) => {
if
(!util.isArray(array) || array.length === 0) {
496
18
return
-1;
}
if
(
typeof
str !== 'string') {
return ...
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Publisher Resources

ISBN: 9787519869601