我需要检查一个数字是否增加10（70,20,110）
例如： 输入：（74,21,105） 输出：false
输入：（70,20,110） 输出：true我试过了 function findLinkInText(regex, contentBlock, callback) {
const text = contentBlock.getText();
let matchArr, start;
if ((matchArr = regex.exec(text)) !== null) {
start = matchArr.index;
var URL = matchArr[0];
console.log(URL);
// I am putting the parameters used to make the call in a JSON object to be used in the "then"
var myparameters = { myCallback: callback, URL: URL, start: start };
axios({
method:post,
url:'/url',
data: { url: URL },
// note that i am attaching the callback to be carrired through
myParameters: myparameters
}).then(response => {
// This section is the callback generated by the post request.
// it cannot see anything unless they declared globally or attached to the request and passed through
// which is what i did.
passit = response.data
var s = response.config.myParameters.start;
var u = response.config.myParameters.URL
response.config.myParameters.myCallback(s, s + u.length)
})
}
}
答案 0 :(得分：2)
remainder operator (%)确实是你正在寻找的。
二元运算符
%产生第一个操作数除以第二个的余数（在通常的算术转换之后）。
您正在寻找的余数是零，而不是一个。因此，正确的检查是：
if(num % 10 == 0)