Why do lots of programmers move commas to the next line? [closed]

Answer 1

You might be looking at generated code, for instance, when writing a loop to generate an SQL select statement sometimes I will write it like:

sql =  "SELECT";
sql += "  table.id"; // or some field that will always be in the query
for (var i = 0; i < 10; i++;) {
  sql += ",  table.field" + i; 
}
sql += "FROM table" // etc

Instead of adding the comma at the end and then having a condition to omit it on the last iteration of the loop or doing:

sql =  "SELECT";
for (var i = 0; i < 10; i++;) {
  sql += "  table.field" + i + ","; 
}
sql += "  table.id";
sql += "FROM table" // etc

Which is functionally equivalent, but then the ID doesn't appear where I usually want it.