JavaScript Break Continue Loop

Perform For Break Continue In JavaScript

Loops execute one or more statements up to a specific number of times.

Loops allow repetitive tasks to be executed using minimal code. Break ends the execution of the current loop. Continue skips the rest of the current loop iteration.

Loops allow complex tasks to be simplified by automating similar operations.

Common Syntax Of Loop In JavaScript

Glossary:

Array

Data structure consisting of group of memory elements accessed by at least one index or key.

Collection

Abstract data type grouping such as arrays.

Iterate

Repeat a process.

Iterable

An object that can be iterable over such as an array.

Common For Break Continue Conditions

Ojamboshop.com Learning JavaScript For Break Continue

Name	Description	Example
for (variable of iterable)	loop assigns object value.	for (let key of Object.keys(pickup_truck))
for (variable of iterable)	loop assigns array value.	for (let n of even_numbers)
break	End execution of current structure.	break;
continue	Skip rest of current loop iteration.	continue;
Name	Description	Example

JavaScript For Break Continue Snippet

// OjamboShop.com Learning JavaScript For Break Continue Loop Tutorial
let pickup_truck = {"brand":"Ford", "model":"F-Series", "year":1984};
let even_numbers = [2,4,6,8,10];
let numbers = [10, 20, 30, 40, 50];
// For Each Loop Break
for (let key of Object.keys(pickup_truck)) { 
	if (key == "model") break;
	console.log(`${key}: ${pickup_truck[key]}`);
}
for (let even_number of even_numbers) {
	if (even_number == 4) break;
	console.log(even_number);
}
for (let number of numbers) {
	if (number == 20) break;
	console.log(number);
}
// For Each Loop Continue
for (let key of Object.keys(pickup_truck)) { 
	if (key == "brand") continue;
	console.log(`${key}: ${pickup_truck[key]}`);
}
for (let even_number of even_numbers) {
	if (even_number == 2) continue;
	console.log(even_number);
}
for (let number of numbers) { 
	if (number == 10) continue;
	console.log(number);
}

Usage

You can use any IDE or text editor and the web browser to compile and execute JavaScript code. For this tutorial, the OjamboShop.com Learning JavaScript Course Web IDE can used to input and compile JavaScript code for the break continue loop.

Open Source

JavaScript follows the ECMAScript standard and is licensed under the W3C Software License by web browser vendors and runtime environment vendors. This allows commercial use, modification, distribution, and allows making derivatives proprietary.

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Conclusion:

JavaScript makes it easy to use the break and continue loop statements. Use break to the current loop execution. Use continue to skip the rest of the current loop iteration.

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