I have been playing around with flutter for a few days now, haven't gotten a hang of it. While trying out the dart and its methods it got me thinking to make the learning curve easier started relating javascript (as I am very familiar with it, personal choice, people might have or use different approach).
I am stuck with this one small doubt, is it possible to destructure and spread at the same time in dart? I understand if it's not possible, how would I achieve something like this with dart? I am trying to get the first item of the array in a variable and the rest of the array values in a string with joining them as a string. Do I have to loop through all of them? Can't be in a shorter or prettier way(perspective tho)?
// JavaScript
var someArray = ['1', '2' ,'3', '4'];
var [first, ...rest] = someArray;
var restAsString = rest.join(' ');
console.log(first); // 1
console.log(restAsString); // 2 3 4
//dart
main(List<String> arguments) {
List<String> someList = ['1', '2' ,'3', '4'];
String restString = '';
String firstString = '';
for (int i = 0; i < someList.length; i++) {
if(i == 0 ) {
firstString = someList[i];
} else {
restString = '$restString ${someList[i]}';
}
}
print(firstString); // 1
print(restString); // 2 3 4
}
I have been playing around with flutter for a few days now, haven't gotten a hang of it. While trying out the dart and its methods it got me thinking to make the learning curve easier started relating javascript (as I am very familiar with it, personal choice, people might have or use different approach).
I am stuck with this one small doubt, is it possible to destructure and spread at the same time in dart? I understand if it's not possible, how would I achieve something like this with dart? I am trying to get the first item of the array in a variable and the rest of the array values in a string with joining them as a string. Do I have to loop through all of them? Can't be in a shorter or prettier way(perspective tho)?
// JavaScript
var someArray = ['1', '2' ,'3', '4'];
var [first, ...rest] = someArray;
var restAsString = rest.join(' ');
console.log(first); // 1
console.log(restAsString); // 2 3 4
//dart
main(List<String> arguments) {
List<String> someList = ['1', '2' ,'3', '4'];
String restString = '';
String firstString = '';
for (int i = 0; i < someList.length; i++) {
if(i == 0 ) {
firstString = someList[i];
} else {
restString = '$restString ${someList[i]}';
}
}
print(firstString); // 1
print(restString); // 2 3 4
}
- I see there's a close request for details or clarity require. How clear it can be? Just trying to understand the best practices or a better way to write dart.