I am trying to calculate time difference and if time difference is greater than 20 mins, I want to display an alert message
and then exit. I don't intend to loop through all the rows
and want to exit the function after finding out the first host which has minutes < 20
.
this.dataSource.filteredData.forEach(
async row => {
this.selection.select(row);
// const host = row.hostName.substring(0, row.hostName.indexOf('.'));
const host = 'abc';
const prevData = await this.myService.getData(host);
const timeDiff = Math.abs(new Date().getTime() - new Date(prevData[0].dateAt).getTime());
const minutes = Math.floor((timeDiff / 1000) / 60);
if (minutes < 20) {
window.alert('Please check after ' + (20 - minutes) + ' minutes.');
return false;
}
});
I am trying to exit the function using return false
but it is still looping through all the rows.
Updated code without foreach
:
const f = (async row => {
const host = 'abc';
const prevData = this.myService.getData(host);
const timeDiff = Math.abs(new Date().getTime() - new Date(prevData[0].dateAt).getTime());
const minutes = Math.floor((timeDiff / 1000) / 60);
return minutes;
});
(async () => {
for (let i = 0; i < this.dataSource.filteredData.length; i++) {
const mins = await f(this.dataSource.filteredData[i]);
if (mins < 200) {
window.alert('Please retry after ' + (200 - mins) + ' minutes.');
break;
}
}
})();
In the above code, this.myService.getData(host)
is returning null
Here is a minimally-viable representation of how the control should be programmed:
let rows = [1, 2, 3];
let f = (async row => {
return row === "2";
});
(async () => {
for (let i = 0; i < rows.length; i++) {
let result = await f(rows[i]);
console.log(result);
if (!result) {
break;
}
}
})();
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