在Node.js中,读取.html文件的目录并在其中搜索元素属性? [英] In Node.js, reading a directory of .html files and searching for element attributes inside them?
问题描述
我知道这似乎有点奇怪,但它是一个项目,需要用户上传他们的静态网站文件,然后我的Node应用程序对他们的文件做了些什么。
无论如何,只是对某些文件类型的迭代感兴趣,然后在里面寻找它们......任何解决这个问题的帮助都可以帮助我。 / p>
非常感谢,James
这段代码会扫描然后查找 .html
文件的内容,然后查找字符串 data-template =home$ c
$ b
var fs = require('fs');
$ b $ f .readdir('/ path / to / html / files',function(err,files){
files
.filter(function(file){return file。 substr(-5)==='.html';})
.forEach(function(file){fs.readFile(file,'utf-8',function(err,contents){inspectFile(contents) ;});});
});
函数inspectFile(contents){
if(contents.indexOf('data-template =home')!= -1){
//做某事$ b如果你需要更多的灵活性,你也可以使用<
cheerio
模块使用该属性在html文件中查找元素: var cheerio = require('cheerio');
函数inspectFile(contents){
var $ = cheerio.load(contents);
if($('html [data-template =home]')。length){
//做某事
}
}
I can't even begin to think about how this would be done. Basically, imagine a folder and it has a static website in it. It has all the images, styles and html files etc. With my Node application, I want to look inside this folder, get just the .html files only and then pick just the .html files that have the attribute 'data-template="home"' inside them.
I know this seems a little odd maybe, but it's for a project that requires the user to upload their static website files and then my Node app does things to them files.
Anyhow, was just curious about iterating over certain filetypes and then looking inside them... Any help with approaching this would really help me.
Many thanks, James
This piece of code will scan for all files in a directory, then read the contents of .html
files and then look for a string data-template="home"
in them.
var fs = require('fs');
fs.readdir('/path/to/html/files', function(err, files) {
files
.filter(function(file) { return file.substr(-5) === '.html'; })
.forEach(function(file) { fs.readFile(file, 'utf-8', function(err, contents) { inspectFile(contents); }); });
});
function inspectFile(contents) {
if (contents.indexOf('data-template="home"') != -1) {
// do something
}
}
If you need more flexibility, you could also use the cheerio
module to look for an element in the html file with that attribute:
var cheerio = require('cheerio');
function inspectFile(contents) {
var $ = cheerio.load(contents);
if ($('html[data-template="home"]').length) {
// do something
}
}
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