如何在每个循环中“继续”：下划线，node.js
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How to 'continue' inside a each loop : underscore, node.js
提问by Peter Lyons
The code in node.js is simple enough.
node.js 中的代码很简单。
_.each(users, function(u, index) {
if (u.superUser === false) {
//return false would break
//continue?
}
//Some code
});
My question is how can I continue to next index without executing "Some code" if superUser is set to false?
我的问题是，如果 superUser 设置为 false，如何在不执行“某些代码”的情况下继续下一个索引？
PS: I know an else condition would solve the problem. Still curious to know the answer.
PS：我知道 else 条件可以解决问题。还是很想知道答案。
回答by Peter Lyons
_.each(users, function(u, index) {
if (u.superUser === false) {
return;
//this does not break. _.each will always run
//the iterator function for the entire array
//return value from the iterator is ignored
}
//Some code
});
Side note that with lodash (not underscore) _.forEachif you DO want to end the "loop" early you can explicitly return falsefrom the iteratee function and lodash will terminate the forEachloop early.
旁注，使用 lodash（不是下划线），_.forEach如果您确实想提前结束“循环”，您可以return false从 iteratee 函数中明确显示，并且 lodash 将forEach提前终止循环。
回答by Vishnu PS
Instead of continuestatement in for loop you can use returnstatement in _.each()in underscore.js it will skip the current iteration only.
continue您可以在 underscore.js 中使用returnstatement in代替for 循环中的语句，_.each()它只会跳过当前迭代。
回答by pdoherty926
_.each(users, function(u, index) {
if (u.superUser) {
//Some code
}
});
