Echoing string and variable in vim script

Question

Have the following simple function in a vim script:

function me#Tabwidth(width)
    let &tabstop = a:width
    let &shiftwidth = a:width
    set expandtab
    echom "Tab width set to " + a:width
endfunction

The function is being called like this in the vimrc file.

command -nargs=* Tabwidth :call me#Tabwidth(<f-args>)

When called by typing "Tabwidth 2" only the value of the variable is being echoed out, but not the string. What am I doing wrong?

yolenoyer · Accepted Answer · 2016-04-16 13:45:05Z

3

In vim script, string concatenation is done with . operator. Try like this:

echom "Tab width set to " . a:width

If a:width is a number, it will be automatically converted.

answered Apr 16, 2016 at 13:45

yolenoyer

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