Day 10 – Mastering EventEmitter - Learning Node JS In 30 Days [Mini series]

Go to https://nodejs.org/dist/latest-v12.x/docs/api/fs.html then you can see oficial document of fs

Now, first we need to require the fs and store it on a const by writing const fs = require('fs')

We are going to use fs.readFileSync

I am using a song.txt file on same folder and read file text using readFileSync and console log it

Run it and see the magic

We are going to use writeFileSync for the writing in song.txt file

Using fs.writeFileSync(path, dataForWrite) we can write in the file, what we need to write.

After write, we need to read the data so that we can see if are able to change -

Did you used fs module before ?

You can see the graphical version here

Originally it published on nerdjfpbblog. You can connect with me in twitter or linkedin !

You can read the old posts from here --

Day 1 — Introduction - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 4 '19 ・ 1 min read

#node #javascript #codenewbie

Day 2 - Install and Running Node on Window - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 5 '19 ・ 1 min read

#node #javascript #codenewbie

Day 3 - JavaScript Engine - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 6 '19 ・ 2 min read

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Day 4 - Window === Global ? - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 7 '19 ・ 2 min read

#node #javascript #codenewbie

Day 5 - Function Declarations vs. Function Expressions - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 8 '19 ・ 1 min read

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Day 6 - Require & Module - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 9 '19 ・ 2 min read

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Day 7 - More Modules - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 10 '19 ・ 2 min read

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Day 8 – Var vs Let vs Const -Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 11 '19 ・ 2 min read

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Day 9 – Mastering EventEmitter - Learning Node JS In 30 Days [Mini series]

Muhammad Ali (Nerdjfpb) ・ Dec 14 '19 ・ 2 min read

#node #javascript #codenewbie

Comments

[thientm]

title wrong, day 10 file read and write