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How do I add a delay in a JavaScript loop?
...Promise that resolves after "ms" Milliseconds
function timer(ms) {
return new Promise(res => setTimeout(res, ms));
}
async function load () { // We need to wrap the loop into an async function for this to work
for (var i = 0; i < 3; i++) {
console.log(i);
await timer(3000); // then...
Firefox 'Cross-Origin Request Blocked' despite headers
...ORS request did not succeed
After pulling my hair out I found out that a newly installed Firefox extension, Privacy Badger, was blocking the requests.
If you come to this question after scratching your head, try checking to see what extensions you have installed to see if any of them are blocking...
MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
...ttp://dev.mysql.com/doc/refman/5.6/en/insert.html says:
INSERT inserts new rows into an existing table. The INSERT ... VALUES and INSERT ... SET forms of the statement insert rows based on explicitly specified values. The INSERT ... SELECT form inserts rows selected from another table or tables....
How to create our own Listener interface in android?
...
Create a new file:
MyListener.java:
public interface MyListener {
// you can define any parameter as per your requirement
public void callback(View view, String result);
}
In your activity, implement the interface:
MyActi...
Programmatically shut down Spring Boot application
...ne it's time to stop...
int exitCode = SpringApplication.exit(ctx, new ExitCodeGenerator() {
@Override
public int getExitCode() {
// no errors
return 0;
}
});
// or shortened to
// int exitCode = Spr...
Declare and initialize a Dictionary in Typescript
...his class,
getUsers(): Observable<any> {
var searchParams = new SearchParameters();
searchParams.SearchFor['userId'] = '1';
searchParams.SearchFor['userName'] = 'xyz';
return this.http.post(searchParams, 'users/search')
.map(res => {
...
Resize image in PHP
... $height = ceil($height-($height*abs($r-$w/$h)));
}
$newwidth = $w;
$newheight = $h;
} else {
if ($w/$h > $r) {
$newwidth = $h*$r;
$newheight = $h;
} else {
$newheight = $w/$r;
$newwidth = $w;
...
Is there a version control system for database structure changes?
... version control system -- whenever you change the database you check in a new script, and any developer can apply it to bring their local db to the latest version.
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Equivalent of String.format in jQuery
... for (var i = 0; i < arguments.length - 1; i++) {
var reg = new RegExp("\\{" + i + "\\}", "gm");
s = s.replace(reg, arguments[i + 1]);
}
return s;
}
And here are the endsWith and startsWith prototype functions...
String.prototype.endsWith = function (suffix) {...
Creating an empty Pandas DataFrame, then filling it?
... date_range is a factory function for creating datetime indexes and was a new feature in 0.8.0, I would definitely recommend upgrading to the latest stable release (0.9.1) there are many bug fixes and new features. :)
– Andy Hayden
Dec 15 '12 at 9:52
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