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Start your free trialjohn larson
16,594 Points+= 'string' vs + var + 'string'
in the videos dave tends to do this
html +=
'<p style="background: '
html += rgbColor()
html += ';" class="color"> '
html += rgbColor()
html += '</p>'
I noticed in php they do this
html +=
'<p style="background: '
+ rgbColor()
+ ';" class="color"> '
+ rgbColor()
+ '</p>'
and it seems to work just as well here. I like it better. any reason NOT to do it the second way?
john larson
16,594 PointsMathew, thanks for responding. The only difference I see In my first example and and your example is line breaks. And yes, on my second example I add line breaks to help me stay organized. I would give you a "Best answer", but it looks like you responded in "Post comment" instead of as an answer. If you re-post it as an answer I can give you the thumbs up !
1 Answer
Steven Parker
231,275 PointsThere are many choices to be made in programming, not every case has a clearly "right" way.
In this situation, the final value of "html" is the same whether you build it incrementally or all at once with a single large statement.
While it is good practice to end statements with semicolons, they are optional when the statement is the last thing on a line.
john larson
16,594 PointsThanks Steve, you're always awesome!
Matthew Batman
30,187 PointsMatthew Batman
30,187 PointsWhat Dave is actually doing is probably this:
I haven't double-checked any of his videos, but he's probably writing one line at a time. In JavaScript, for your second example, you're actually executing one line that does the same as the series of lines.
I don't think there's a general reason not to do it the second way. You could probably come up with reasons in a specific situation where one is better than the other, but one isn't better than the other in some type of objective sense.