JavaScript Loops
Syntax
- for (initialization; condition; final_expression) { }
- for (key in object) { }
- for (variable of iterable) { }
- while (condition) { }
- do { } while (condition)
- for each (variable in object) { } // ECMAScript for XML
Remarks
Loops in JavaScript typically help solve problems which involve repeating specific code x amount of times. Say you need to log a message 5 times. You could do this:
console.log("a message");
console.log("a message");
console.log("a message");
console.log("a message");
console.log("a message");
But that's just time-consuming and kind of ridiculous. Plus, what if you needed to log over 300 messages? You should replace the code with a traditional "for" loop:
for(var i = 0; i < 5; i++){
console.log("a message");
}
