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event.preventDefault() function not working in IE
...IE, you can use
event.returnValue = false;
to achieve the same result.
And in order not to get an error, you can test for the existence of preventDefault:
if(event.preventDefault) event.preventDefault();
You can combine the two with:
event.preventDefault ? event.preventDefault() : (event.ret...
Javascript - Track mouse position
... t mseconds. So essentially, when a page loads - this tracker should start and for (say) every 100 ms, I should get the new value of posX and posY and print it out in the form.
...
Xcode duplicate line
There is a Duplicate command in the Edit Menu (with a default shortcut of ⌘ D ), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
...
Surrogate vs. natural/business keys [closed]
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Both. Have your cake and eat it.
Remember there is nothing special about a primary key, except that it is labelled as such. It is nothing more than a NOT NULL UNIQUE constraint, and a table can have more than one.
If you use a surrogate key, y...
Get last field using awk substr
...fectly. I didnt think about $NF variable. Thanks for your immediate simple and effective answer.
– Mari
Jul 29 '13 at 10:27
6
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Identifying the dependency relationship for python packages installed with pip
...cies for packages installed by conda: e.g. in a conda env where matplotlib and numpy were installed using pip, but scipy was installed using conda, scipy shows up in the pipdeptree as having no depencies and no dependents (also pip show scipy shows no requirements).
– djvg
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
I have two branches, email and staging . staging is the latest one and I no longer need the old changes in email branch, yet I don't want to delete them.
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How to create a file with a given size in Linux?
...ocksize will perform much worse once it gets very big, as it will allocate and read that amount into memory before writing. If this is somethig like bs=4GiB you'll probably end up swapping.
– Brian
Sep 29 '08 at 7:40
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Database development mistakes made by application developers [closed]
...using it anyway.
More here:
How important are constraints like NOT NULL and FOREIGN KEY if I’ll always control my database input with php?
Are foreign keys really necessary in a database design?
Are foreign keys really necessary in a database design?
3. Using natural rather than surrogate (te...
AngularJS : The correct way of binding to a service properties
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Consider some pros and cons of the second approach:
0 {{lastUpdated}} instead of {{timerData.lastUpdated}}, which could just as easily be {{timer.lastUpdated}}, which I might argue is more readable (but let's not argue... I'm giving this poi...