I am trying to create a folder and then inside that create a file (index.html,styles.css,app.js),but it's throwing error that string must be passed as arg but I am already passing a string.
<pre>
let fs = require('fs');
let fileName ="";
fileName = process.argv[2] || 'demoProject';
try{
fs.mkdirSync(fileName);
fs.writeFileSync((fileName+"/index.html").toString());
fs.writeFileSync((fileName+"/style.css").toString());
fs.writeFileSync((fileName+"/app.js").toString());
}catch(e){
console.log(e);
}
</pre>
the error given by this is :
TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined
at Object.writeFileSync (node:fs:2146:5)
at Object. (C:\Users\monojit debnath\Desktop\NodeJsPractice\Practice2.js:6:8)
at Module._compile (node:internal/modules/cjs/loader:1101:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
at node:internal/main/run_main_module:17:47 {
code: 'ERR_INVALID_ARG_TYPE'
}
</pre>
The fs.writeFileSync() needs 2 parameters.
path - The filepath to writedata - The data to write to the file. (Type Buffer OR stringYou miss the data parameter. So it only knows the file, but NOT what content to write.
The result would be something like:
<pre>
const fs = require('fs');
const dirName = process.argv[2] || 'demoProject';
try{
fs.mkdirSync(dirName);
fs.writeFileSync(`${dirName}/index.html`, '<!-- boilerplate here -->');
fs.writeFileSync(`${dirName}/style.css`, '');
fs.writeFileSync(`${dirName}/app.js`, '');
}catch(e){ console.error(e); }
</pre>