[英]How to assign a variable for each item of the loop
for (var i = 0; i < dataForecast.list.length; i += 8) {
const data = dataForecast.list[i].dt_txt;
}
This loops gives out 5 intended looped pieces of data but I'm struggling to assign each loop to its own variable.这个循环给出了 5 个预期的循环数据,但我正在努力将每个循环分配给它自己的变量。
Use an array使用数组
const dataArr = [];
for (var i = 0; i < dataForecast.list.length; i += 8) {
const data = dataForecast.list[i].dt_txt;
dataArr.push(data);
}
console.log(dataArr); // access the array
It seems you want to dynamically generate and assign variable value.似乎您想动态生成和分配变量值。 For this you can use eval() method like below:
为此,您可以使用如下所示的eval()方法:
dataArray = [1, 2, 3, 4, 5]
var x = 'data'
for (var i = 0; i < dataArray.length; i++) {
eval('var ' + x + i + '= ' + dataArray[i] + ';');
}
console.log("data0=" + data0);
console.log("data1=" + data1);
console.log("data2=" + data2);
console.log("data3=" + data3);
console.log("data4=" + data4);
Note: It's not recommended to use eval() method due to security reasons.注意:出于安全原因,不建议使用eval()方法。 You can read more at https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval
您可以在https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval阅读更多内容
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