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window.onload vs document.onload

....onload and fires when the DOM is ready as well. document.onload It is called when the DOM is ready which can be prior to images and other external content is loaded. How well are they supported? window.onload appears to be the most widely supported. In fact, some of the most modern browsers h...
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How to store a list in a column of a database table

...ts in another table, I'd have to sort them every time I accessed them. Finally, the list is basically atomic in that any time I wish to access the list, I will want to access the entire list rather than just a piece of it - so it seems silly to have to issue a database query to gather together piec...
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Exclude a directory from git diff

...t diff previous_release current_release !(spec) Saves you having to list all other things. Or, shell-agnostic: git diff previous_release current_release --name-only | grep -v '^spec/' \ | xargs git diff previous_release current_release -- You could wrap that up in a one-liner shell script ...
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Setting a system environment variable from a Windows batch file?

... The XP Support Tools (which can be installed from your XP CD) come with a program called setx.exe: C:\Program Files\Support Tools>setx /? SETX: This program is used to set values in the environment of the machine or currently logged on user using one of three...
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When to use MongoDB or other document oriented database systems? [closed]

... MySQL as the database backend and recently included MongoDB for storing all meta-information of the files, because MongoDB better fits the requirements. For example: photos may have Exif information, videos may have audio-tracks where we to want to store the meta-information of, too. Videos and...
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Confused about stdin, stdout and stderr?

...ting it accesses the information from, and stderr is the file into which all the exceptions are entered. On opening these files to check whether these actually do occur, I found nothing seem to suggest so! ...
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Is using 'var' to declare variables optional? [duplicate]

... @codemeit : javascript is full of pitfalls like this, but all in all it's a beautiful and very pleasant language. Don't hate it. Just know the pitfalls and leave them out of your code. – Stefano Borini Mar 21 '10 at 1:25 ...
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Copy array by value

...5]; let newArray = oldArray.slice(); console.log({newArray}); Basically, the slice() operation clones the array and returns a reference to a new array. Also note that: For references, strings and numbers (and not the actual object), slice() copies object references into the new array. Both t...
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AngularJS Folder Structure [closed]

... By Type On the left we have the app organized by type. Not too bad for smaller apps, but even here you can start to see it gets more difficult to find what you are looking for. When I want to find a specific view and its controller, they are in different folders. It can be good to start here if yo...
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How to rollback a specific migration?

...nt to go back. For example: rake db:rollback STEP=5 Will also rollback all the migration that happened later (4, 3, 2 and also 1). To roll back all migrations back to (and including) a target migration, use: (This corrected command was added AFTER all the comments pointing out the error in the ...