# R - Next Statement

The next statement in R let the program skip a block of codes for current iteration in a loop. Whenever next statement condition is fulfilled, it brings the program to the start of loop.

When the next statement is used in a nested loop (loop inside loop), it will skip innermost loop's code block, whenever condition is fulfilled.

## Next statement with While loop

In the example below, next statement is used to skip the while loop if the value of variable j becomes 4.

```j <- 0
while (j < 6){
j <- j + 1

#skip the loop when j == 4
if(j == 4) {
print("this iteration is skipped.")
next
}
print(j)
}
```

The output of the above code will be:

``` 1
 2
 3
 "this iteration is skipped."
 5
 6
```

## Next statement with For loop

In the example below, next statement is used to skip the for loop if the value of variable x becomes "yellow".

```color <- c("red", "blue", "green", "yellow", "black", "white")
for(x in color) {
#skip the loop when x == "yellow"
if(x == "yellow") {
print("this iteration is skipped.")
next
}
print(x)
}
```

The output of the above code will be:

``` "red"
 "blue"
 "green"
 "this iteration is skipped."
 "black"
 "white"
```

## Next statement with Nested loop

The next statement skip the inner loop's block of codes whenever condition is fulfilled. In below mentioned example, program skips the inner loop for multiplier = 100.

```# nested loop without next statement
digits <- c(1, 2, 3)
multipliers <- c(10, 100, 1000)
print("# nested loop without next statement")
for (digit in digits)
for (multiplier in multipliers)
print (digit * multiplier)
```

The output of the above code will be:

``` "# nested loop without next statement"
 10
 100
 1000
 20
 200
 2000
 30
 300
 3000
```

```# nested loop with next statement
digits <- c(1, 2, 3)
multipliers <- c(10, 100, 1000)
print("# nested loop with next statement")
for (digit in digits) {
for (multiplier in multipliers) {
if (multiplier == 100)
next
print (digit * multiplier)
}
}
```

The output of the above code will be:

``` "# nested loop with next statement"
 10
 1000
 20
 2000
 30
 3000
```

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