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I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this post.

Update 2:

J in visual mode provides extra capabilities. See :help v_J. (Thanks to @Antony's comment.)

I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this post.

Update 2:

J in visual mode provides extra capabilities. See :help v_J. (Thanks to @Antony's comment.)

I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this post.

I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this post.

Update 2:

J in visual mode provides extra capabilities. See :help v_J. (Thanks to @Antony's comment.)

I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this [post][1].

Update 2: J in visual mode provides extra capabilities. See :help v_J. Thanks to @Antony's comment.

I accidentally discovered that the key combination will concatenate the current line and the next line. However, I do not recall it being mentioned in the quickref. After a quick Google, I did not find anything. Do any have a clue about where in the documents can I find more about this key combination?

BTW, I have confirmed that this is not mapped in the :map.

Update:

With the help from a comment, (Curiously, I saw it in a message. But after I opened the website, it disappeared.) I found that I am actually using the <shift-j>, i.e. <J> key to join lines. Thanks to this post.