As a beginner, I find myself struggling to understand the code snippet below.
for (var i=1; i<=5; i++) {
console.log('ooo');
setTimeout( function timer(){
console.log( i );
}, i*1000 );
}
The output generated by this code segment looked like the following:
ooo
ooo
ooo
ooo
ooo
6
6
6
6
6
I would greatly appreciate any help in clarifying the workings of this code. Thank you!
for (let j=1; j<=5; j++) {
console.log('ooo');
setTimeout( function timer(){
console.log( j );
}, j*1000 );
}
When the setTimeout() is invoked in this code, the for loop will have completed, and each function will reference a different value of j ranging from 1 to 5.
function closure(j){
setTimeout( function timer(){
console.log( j );
}, j*1000 );
}
for (let j=1; j<=5; j++) {
console.log('ooo');
closure(j);
}
This implementation will output values of j from 1 to 5 as each function can access only its specific value of j.
The expected outcome should resemble the following: Please follow these instructions carefully 1. The code will output "000" <= 5 times. - In each iteration of a for loop, the variable i is incremented. When the timer function is first executed, i has been increased to 127 and then to 6.
16:57:40.946 ooo
16:57:40.946 ooo
16:57:40.946 ooo
16:57:40.947 ooo
16:57:40.947 ooo
16:57:40.947 127
16:57:41.949 6
16:57:42.947 6
16:57:43.951 6
16:57:44.947 6
16:57:45.950 6
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