Question

试图让imagemin在Node.js中工作。这是我的代码：

var imagemin = require('imagemin');
var imageminPngquant = require('imagemin-pngquant');
var PNGImages = ['images/image1.png', 'images/image2.png'];

imagemin(PNGImages, 'build', {
    plugins: [
        imageminPngquant({
            quality: '65-80'
        })
    ]
});

但我不断收到错误消息：

(node:22744) UnhandledPromiseRejectionWarning: ArgumentError: Expected argument to be of type `array` but received type `string`

我在做什么错？谢谢。

Answer 1

找到了答案。
imageminPngquant抛出错误的原因是质量设置为65-80，而不是PNGImages数组。

：）

Answer 2

通过质量如下

    def combinationSum(self, candidates, target):
        # List for storing possible all sequence of permutations
        seq_list = []

        # This loop will generate all possible permutation for given candidates
        for i in range(1, target + 1):
           # Extend given list with cartesian product of given candidates

           # To calculate cartesian product set use itertools.product with candidates
           # with set size ranging from 1 to target number
           # This is necessary as we have to find all possible combinations
           seq_list.extend([p for p in itertools.product(candidates, repeat=i)])

        # Just select those sequence whose sum is target
        result = [seq for seq in seq_list if sum(seq) == target]

        # Return length of result set
        return len(result)

s=Solution() 
c=[1,2,3] 
t=int(input()) 
print(s.combinationSum(c,t))

Node.js imagemin如何传递要处理的文件列表

2 个答案: