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Turning live() into on() in jQuery
...ce > Replace in Files
Or Ctrl + Shift + H
In Find and Replace pop-up, set these fields
Find what: \$\((.*)\)\.live\((.*),
Replace with: $(document.body).on($2,$1,
In find options check "Use Regular Expressions"
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How to use Chrome's network debugger with redirects
... This is great. With the load event, we can stop at the beginning and set break point easily. Thanks!
– LeOn - Han Li
Mar 4 '19 at 17:47
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Is an index needed for a primary key in SQLite?
... often no advantage (but significant
overhead) in creating an index on a set of columns that are already
collectively subject to a UNIQUE or PRIMARY KEY constraint.
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Sending a notification from a service in Android
...ication */);
PendingIntent pendingIntent = /* your intent */;
notification.setLatestEventInfo(this, /* your content */, pendingIntent);
notificationManager.notify(/* id */, notification);
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How to do an INNER JOIN on multiple columns
...rts table twice - then you can use both from and to tables in your results set:
SELECT
Flights.*,fromAirports.*,toAirports.*
FROM
Flights
INNER JOIN
Airports fromAirports on Flights.fairport = fromAirports.code
INNER JOIN
Airports toAirports on Flights.tairport = toAirports.code
WHERE...
Difference between .tagName and .nodeName
...urns undefined whereas nodeName returns #text
nodeName has its own set of issues but they are less severe:
IE 5.5 returns ! when called on a comment node. This is less harmful than tagName which suffers from this behaviour across all
versions of IE
IE 5.5 doesn’t support nodeNa...
How to correctly require a specific commit in Composer so that it would be available for dependent p
...ect will need to support dev - which it will complain about if not already set. Also, use --with-dependencies to get any dependencies of the one you are updating.
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Matplotlib scatterplot; colour as a function of a third variable
...
There's no need to manually set the colors. Instead, specify a grayscale colormap...
import numpy as np
import matplotlib.pyplot as plt
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
# Plot...
plt.scatter(x, y, c=y, s=500)
plt.g...
Where do you store your salt strings?
... password so that a single rainbow table can't be used against your entire set of password hashes. With random salts, an attacker must brute-force each hash separately (or compute a rainbow table for all possible salts - vastly more work).
If you had a more secure storage location, it would make se...
What's the difference between using INDEX vs KEY in MySQL?
...
A key is a set of columns or expressions on which we build an index.
While an index is a structure that is stored in database, keys are strictly a logical concept.
Index help us in fast accessing a record, whereas keys just ide...