Return to Question

Editting someone's edits

edited Feb 14, 2023 at 7:44

89.5k
12
88
98

var functionName = function() {} vs function functionName() {} in JavaScript

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

ORAnd,

function functionTwo() {
 // Some code
}

Question: What What are the reasonsreasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

var functionName = function() {} vs function functionName() {} in JavaScript

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

function functionTwo() {
 // Some code
}

Question: What are the reasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

var functionName = function() {} vs function functionName() {}

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

And,

function functionTwo() {
 // Some code
}

What are the reasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

added more clarity and method tag

Source Link

edited Feb 12, 2023 at 20:17

webwizard

edited Feb 12, 2023 at 20:17

webwizard

3.8k
1
25
38

var functionName = function() {} vs function functionName() {} in JavaScript

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

function functionTwo() {
 // Some code
}

WhatQuestion: What are the reasonsreasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

var functionName = function() {} vs function functionName() {}

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

function functionTwo() {
 // Some code
}

What are the reasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

var functionName = function() {} vs function functionName() {} in JavaScript

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

function functionTwo() {
 // Some code
}

Rollback to Revision 26

Source Link

edited Jul 6, 2022 at 7:04

Richard Garside

edited Jul 6, 2022 at 7:04

Richard Garside

89.5k
12
88
98

What is the difference betweenI've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the methods belowcode and their advantages/disadvantages?make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // ...Some code
};

function functionTwo() {
 // ...Some code
}

What are the reasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?

What is the difference between the methods below and their advantages/disadvantages?

var functionOne = function() {
 // ...
};

function functionTwo() {
 // ...
}

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.

The previous developer used two ways of declaring functions and I can't work out if there is a reason behind it or not.

The two ways are:

var functionOne = function() {
 // Some code
};

function functionTwo() {
 // Some code
}

What are the reasons for using these two different methods and what are the pros and cons of each? Is there anything that can be done with one method that can't be done with the other?