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What's Mongoose error Cast to ObjectId failed for value XXX at path “_id”?
...bjectId.
One way to resolve this is to add a check prior to your findById call to see if id is a valid ObjectId or not like so:
if (id.match(/^[0-9a-fA-F]{24}$/)) {
// Yes, it's a valid ObjectId, proceed with `findById` call.
}
...
How to simulate a button click using code?
...event using code in Android? I want to trigger the button click programmatically when some other event occurs.
7 Answers
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How to find if div with specific id exists in jQuery?
...function gets the text of the clicked element and assigns it to a variable called name . That variable is then used as the <div> id of the appended element.
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How to create a MySQL hierarchical recursive query
...y happen if the id passes the first condition. The length function is only called to make sure this condition is always true, even if the pv string would for some reason yield a falsy value.
All in all, one may find these assumptions too risky to rely on. The documentation warns:
you might ge...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...ect two-finger rotation gestures performed on a Canvas. The demo app here, called rotationSprite, is a simple demonstration of detecting rotation gestures. You can download the apk file of the demo app from here. The demo app simply illustrates how to use the RotationDetector component to rotate a...
JavaScript loop through json array?
...ty(key)) {
console.log(data[key].id);
}
}};
You can call it like this
iterateData(data); // write 1 and 2 to the console
Update after Erics comment
As eric pointed out a for in loop for an array can have unexpected results. The referenced question has a lengthy discussion ...
MySQL Fire Trigger for both Insert and Update
...gers, but you can move the common code into a procedure and have them both call the procedure.
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OAuth secrets in mobile apps
... with the OAuth design that we are facing ourselves. We opted to proxy all calls through our own server. OAuth wasn't entirely flushed out in respect of desktop apps. There is no prefect solution to the issue that I've found without changing OAuth.
If you think about it and ask the question why we...
What is the purpose of Flask's context stacks?
..."backend". In other words, the Flask(...) application constructor has been called twice, creating two instances of a Flask application.
Contexts
When you are working with Flask, you often end up using global variables to access various functionality. For example, you probably have code that reads....
405 method not allowed Web API
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Chrome often times tries to do an OPTIONS call before doing a post. It does this to make sure the CORS headers are in order. It can be problematic if you are not handling the OPTIONS call in your API controller.
public void Options() { }
...