For Loop
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for (expression 1; expression 2; expression 3) {
// code block to be executed
}
Example of For Loop
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for(let i = 0; i < arr.length; i++){
// code block to be executed
}
For In Loop
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for (key in object) {
// code block to be executed
}
Example of For In Loop
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for (let x in arr) {
// code block to be executed
}
For Of Loop
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for (variable of iterable) {
// code block to be executed
}
Example of For Of Loop
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for (let x of arr) {
// code block to be executed
}
While Loop
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while (condition) {
// code block to be executed
}
Example of While Loop
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while (i < 10) {
// code block to be executed
i++;
}
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for - loops through a block of code a number of times
for/in - loops through the properties of an object
for/of - loops through the values of an iterable object
while - loops through a block of code while a specified condition is true
do/while - also loops through a block of code while a specified condition is true
for (let i = 0; i < cars.length; i++) {
text += cars[i] + "<br>";
}
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const numbers = [1,2,3,4,5];
const sum = 0;
numbers.forEach(num => { sum += num });