TSLint错误“使用此简单迭代预期了'for-of'循环而不是'for'循环". [英] TSLint Error "Expected a 'for-of' loop instead of a 'for' loop with this simple iteration"
问题描述
我有一个for循环,用于从数据库中获取ID:
for(var i = 0; i < data.GetContractId.length; i++) {
if (data.GetContractId[i].ContractId) {
this.contractExists = true;
}
}
现在,我收到以下TSLint错误:
通过此简单的迭代,预计使用"for-of"循环,而不是"for"循环
我不确定在这种情况下如何使用它,任何人都可以帮忙吗?
TSLint 看到,您可以使用for-of而不是for-loop,它得到了增强并且更加干净
for (let contract of data.GetContractId) {
if (contract.ContractId) {
this.contractExists = true;
break;
}
}
但是您可以在数组对象上使用some
方法
this.contractExists = data.GetContractId.some(contract => contract.ContractId);
some()方法测试数组中是否至少有一个元素 通过了由提供的功能实现的测试.
一些 >
I have a for loop to get an ID from the DB:
for(var i = 0; i < data.GetContractId.length; i++) {
if (data.GetContractId[i].ContractId) {
this.contractExists = true;
}
}
Now I get the following TSLint-Error:
Expected a 'for-of' loop instead of a 'for' loop with this simple iteration
I'm not sure how to use it in this instance, can anyone help?
TSLint see that you could use for-of instead of for-loop it's just enhanced and more cleaner
for (let contract of data.GetContractId) {
if (contract.ContractId) {
this.contractExists = true;
break;
}
}
But you can use some
method on array objects
this.contractExists = data.GetContractId.some(contract => contract.ContractId);
The some() method tests whether at least one element in the array passes the test implemented by the provided function.
这篇关于TSLint错误“使用此简单迭代预期了'for-of'循环而不是'for'循环".的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!