A way to join yarn so you don't have to weave in ends

I'm not so sure about this way. I think I would rather weave in ends so I know my project won't come apart.
https://www.youtube.com/watch?v=GG4rzdhwG04

Hi Jean Marie,
I don't think her way of adding yarn would come undone the way she is doing it.

Hi Jean Marie,
Spoula is right. She is essentially weaving in the new yarn by crocheting it in. It looks like it will stay together well. I will start using this method. Thanks for sharing!
~~ Hugs, Jo ♥

Yes, it will all hold together perfectly. I have done this, but even if I am not using particularly thick yarn (as she mentions), the double-thickness stitches don't look good. It seems to depend on the sequence of stitches in your pattern. Not all patterns are as uniform as in this example.

https://www.youtube.com/watch?v=GG4rzdhwG04[/QUOTE]
Wow I think this is a good method! I hate weaving in when I am done with a project. But what happens when you change colors? I am wondering if it will be ok or will the new color come onto the wrong stitch

I really like this join and use it often. I make the 'join' longer so it connects over a few more stitches. So there is a section of stitches that is a bit thicker than the rest of the fabric, but it is almost imperceptible.

Unless you can estimate exactly where the one yarn ends and the other yarn begins, it may be tricky to try it for changing colours. I prefer to simply start the new colour when finishing up the last step of the last stitch in the old colour (and then weave in the ends - LoL)