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JavaScript

Posted by Vincent C
Vincent C
1,376 Points

Is i++ the same as +=1 in javascript ?

I am looking at loops, and I am wondering if these two codes are the same, but the second option uis just a faster way to type? Thanks

for (i = 0; i < 5; i += 1) { text += "The number is " + i ; }

VS

for (i = 0; i < 5; i++) { text += "The number is " + i ; }

Kristian Woods
Kristian Woods
23,414 Points 
i += 1 is the shorthand for:   var  i = i + 1;

i++ is another shorthand to increment the variable by JUST 1

i-- will decrement the variable by 1

so, the advantage of using i += 1 - is that you have more flexibility with the way the variable increments 

example: i += 5, i += 10 etc.

Hope this helped

1 Answer

Edward Ries
Edward Ries
7,388 Points
Edward Ries
Edward Ries
7,388 Points

Actually in this case yes and in a for statement I recommend you use i++ unless you need to step by a higher number. Say if you needed to loop through a list by 2's then you can use +=2.

You might always want to experiment with ++i which.