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Reza Lavarian

Hey 👋 I'm a software engineer, an author, and an open-source contributor. I enjoy helping people (including myself) decode the complex side of technology.

Joined Joined on  Personal website https://www.decodingweb.dev github website
JavaScript list (array) comprehension explained with examples
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JavaScript list (array) comprehension explained with examples

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How to fix “ValueError: I/O operation on closed file” in Python
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How to fix “ValueError: I/O operation on closed file” in Python

#python #programming #tutorial #beginners
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3 min read
Four ways to check if a variable is a string in JavaScript (with examples)
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Four ways to check if a variable is a string in JavaScript (with examples)

#beginners #tutorial #programming #javascript
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4 min read
Python __new__() method explained with examples
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Python __new__() method explained with examples

#python #programming #beginners
3
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4 min read
Label htmlFor Property Explained
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Label htmlFor Property Explained

#javascript #webdev #beginners
2
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3 min read
About “ReferenceError: document is not defined” in JavaScript
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About “ReferenceError: document is not defined” in JavaScript

#javascript #webdev #beginners
1
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4 min read
About "SyntaxError: Unexpected end of JSON input" in JavaScript
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About "SyntaxError: Unexpected end of JSON input" in JavaScript

#javascript #webdev #beginners
2
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2 min read
Add commas to numbers in JavaScript (Explained with examples)
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Add commas to numbers in JavaScript (Explained with examples)

#javascript #webdev #beginners
4
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3 min read
How to remove the last character from a string in PHP
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How to remove the last character from a string in PHP

#php #webdev #beginners
3
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4 min read
About "TypeError: map is not a function" in JavaScript
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About "TypeError: map is not a function" in JavaScript

#javascript #webdev #beginners
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5 min read
Cannot find module error in Node.js (Fixed)
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Cannot find module error in Node.js (Fixed)

#javascript #webdev #beginners
1
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6 min read
PHP double question marks (Null coalescing operator) explained
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PHP double question marks (Null coalescing operator) explained

#php #webdev #beginners
2
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2 min read
How to Flatten an array in PHP (four methods)
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How to Flatten an array in PHP (four methods)

#php #programming #beginners
2
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4 min read
PHP replace space with dash explained with examples
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PHP replace space with dash explained with examples

#webdev #beginners #php
1
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3 min read
Integer division in JavaScript explained
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Integer division in JavaScript explained

#javascript #webdev #beginners
2
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3 min read
JavaScript isset Equivalent (3 methods)
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JavaScript isset Equivalent (3 methods)

#javascript #webdev #beginners
1
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5 min read
How to check if an element exists in JavaScript (with examples)
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How to check if an element exists in JavaScript (with examples)

#javascript #webdev #beginners
1
Comments 1
3 min read
Get viewport width and height in JavaScript (with examples)
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Get viewport width and height in JavaScript (with examples)

#javascript #webdev #beginners
2
Comments 1
2 min read
About “__dirname is not defined in ES module scope” in JavaScript
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About “__dirname is not defined in ES module scope” in JavaScript

#javascript #webdev #beginners
2
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2 min read
How to get yesterday’s date in JavaScript without a library
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How to get yesterday’s date in JavaScript without a library

#javascript #webdev #beginners
2
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2 min read
How to add days to a date in JavaScript (without a library)
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How to add days to a date in JavaScript (without a library)

#javascript #webdev #beginners
3
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3 min read
Subtract days from a date in JavaScript without a library
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Subtract days from a date in JavaScript without a library

#javascript #webdev #beginners
2
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3 min read
Get the day of the week in JavaScript without a library
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Get the day of the week in JavaScript without a library

#javascript #webdev #beginners
5
Comments 1
3 min read
JavaScript double exclamation mark explained (with examples)
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JavaScript double exclamation mark explained (with examples)

#javascript #webdev #beginners
6
Comments 1
4 min read
Javascript if/else shorthand explained (with common uses cases)
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Javascript if/else shorthand explained (with common uses cases)

#javascript #webdev #beginners
2
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2 min read
About "Cannot use import statement outside a module" in JavaScript
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About "Cannot use import statement outside a module" in JavaScript

#javascript #webdev #beginners
1
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3 min read
About "‘str’ object has no attribute ‘decode’" error in Python
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About "‘str’ object has no attribute ‘decode’" error in Python

#python #programming
1
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2 min read
About "getElementById is not a function" in JavaScript
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About "getElementById is not a function" in JavaScript

#javascript #webdev #beginners
1
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3 min read
Convert a dd/mm/yyyy string to a Date object in JavaScript
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Convert a dd/mm/yyyy string to a Date object in JavaScript

#javascript #webdev #beginners
1
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4 min read
About "Await is only valid in Async functions" error in JavaScript
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About "Await is only valid in Async functions" error in JavaScript

#javascript #programming #webdev
4
Comments 1
5 min read
About "AttributeError module ‘DateTime’ has no attribute ‘strptime’" in Python
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About "AttributeError module ‘DateTime’ has no attribute ‘strptime’" in Python

#python #programming
2
Comments 1
2 min read
About "Unindent does not match any outer indentation level" error in Python
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About "Unindent does not match any outer indentation level" error in Python

#python #programming
1
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5 min read
About "missing 1 required positional argument: ‘self’" in Python
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About "missing 1 required positional argument: ‘self’" in Python

#python #programming
2
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3 min read
How to reverse a range in Python (with examples)
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How to reverse a range in Python (with examples)

#python #programming
2
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3 min read
About "TypeError: unhashable type: ‘dict'” in Python
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About "TypeError: unhashable type: ‘dict'” in Python

#python #programming
1
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4 min read
On "TabError: inconsistent use of tabs and spaces in indentation" in Python
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On "TabError: inconsistent use of tabs and spaces in indentation" in Python

#python #programming
1
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3 min read
About "Not all arguments converted during string formatting" error in Python
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About "Not all arguments converted during string formatting" error in Python

#python #programming
1
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4 min read
About "can only concatenate str (not “list”) to str" in Python
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About "can only concatenate str (not “list”) to str" in Python

#python #programming
2
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4 min read
How to fix "can only concatenate str (not “dict”) to str" in Python
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How to fix "can only concatenate str (not “dict”) to str" in Python

#python #programming
1
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4 min read
How to fix "can only concatenate str (not “bool”) to str" in Python
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How to fix "can only concatenate str (not “bool”) to str" in Python

#python #programming
1
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3 min read
How to fix "can only concatenate str (not “int”) to str" in Python
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How to fix "can only concatenate str (not “int”) to str" in Python

#python #programming
1
Comments
4 min read
About 'can only concatenate str (not “float”) to str' error in Python
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About 'can only concatenate str (not “float”) to str' error in Python

#python #programming
1
Comments 1
4 min read
How to fix "‘int’ object is not callable" in Python
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How to fix "‘int’ object is not callable" in Python

#python #programming
5
Comments 1
5 min read
How to fix “TypeError: ‘float’ object is not callable” in Python
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How to fix “TypeError: ‘float’ object is not callable” in Python

#python #programming
1
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5 min read
How to fix "‘str’ object is not callable" in Python
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How to fix "‘str’ object is not callable" in Python

#python #programming
1
Comments
4 min read
How to fix "‘list’ object is not callable" in Python
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How to fix "‘list’ object is not callable" in Python

#python #programming
1
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5 min read
How to fix "‘dict’ object is not callable" in Python
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How to fix "‘dict’ object is not callable" in Python

#python #programming
2
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5 min read
How to fix "‘tuple’ object is not callable" in Python
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How to fix "‘tuple’ object is not callable" in Python

#python #programming
2
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6 min read
How to fix "‘bool’ object is not callable" in Python
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How to fix "‘bool’ object is not callable" in Python

#python #programming
2
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5 min read
How to fix "SyntaxError: invalid decimal literal" in Python
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How to fix "SyntaxError: invalid decimal literal" in Python

#python #programming
1
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3 min read
How to fix "SyntaxError: ‘break’ outside loop" in Python
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How to fix "SyntaxError: ‘break’ outside loop" in Python

#python #programming
3
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3 min read
How to fix "SyntaxError: ‘continue’ not properly in loop" in Python
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How to fix "SyntaxError: ‘continue’ not properly in loop" in Python

#pyth #programming
1
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3 min read
How to fix "SyntaxError: cannot assign to function call here" in Python
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How to fix "SyntaxError: cannot assign to function call here" in Python

#python #programming
1
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3 min read
How to fix "SyntaxError: cannot assign to literal here" in Python
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How to fix "SyntaxError: cannot assign to literal here" in Python

#python #programming
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3 min read
How to fix "SyntaxError: cannot assign to expression here" in Python
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How to fix "SyntaxError: cannot assign to expression here" in Python

#python #programming
1
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4 min read
How to fix "SyntaxError: EOL while scanning string literal" in Python
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How to fix "SyntaxError: EOL while scanning string literal" in Python

#python #syntaxerror #programming
1
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5 min read
How to fix "SyntaxError: unterminated string literal" in Python
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How to fix "SyntaxError: unterminated string literal" in Python

#python #syntaxerror #programming
1
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5 min read
How to fix "SyntaxError: invalid character" in Python
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How to fix "SyntaxError: invalid character" in Python

#python #syntaxerror #programming
1
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3 min read
how to fix "SyntaxError: invalid non-printable character" in Python
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how to fix "SyntaxError: invalid non-printable character" in Python

#python #syntaxerror #programming
1
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3 min read
How to fix "SyntaxError: Missing parentheses in call to ‘print’" in Python
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How to fix "SyntaxError: Missing parentheses in call to ‘print’" in Python

#python #syntaxerror #programming
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2 min read
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