Last updated: 19 sept, 2024. There is no built-in method or loop called forEach in the Python syntax. But the Python For loop operates as a forEach loop. There is also the option to install a library to get an internal .foreach() method.
Which forEach loop are we talking about?
If we are talking about a forEach loop in general and not in a specific prorgramming languange, then it is usually defined in contrast to the For loop. The For loop loops through a list or other type of collection and runs a piece of code until some condition is met. It can loop through a list many times or only loop through part of a list.
The forEach loop does not loop through a list a set number of times, it simply does it one time and runs a section of code on every item in that list.
External or internal
ForEach can refer to an external for statement like the Java For-Each Loop. Using it on a list of names would use the following syntax in Java:
for (String name : names) {
System.out.println(name);
}Note that the Java For-Each loop uses the syntax “for”.
ForEach can also refer to an internal foreach() method that comes built-in in different kinds of lists. Here is a Java internal forEach method syntax:
names.forEach(name -> System.out.println(name));ForEach in Python
In Python we use the external for statement to make a forEach loop.
numbers = [10, 20, 30, 40, 50]
for number in numbers:
print(number).foreach() method in Python
There is no .foreach() method built-in into Python. But you can get it by installing a library. Infixpy is such a python library.
