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How is mime type of an uploaded file determined by browser?
I have a web app where the user needs to upload a .zip file. On the server-side, I am checking the mime type of the uploaded file, to make sure it is application/x-zip-compressed or application/zip .
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How to align center the text in html table row?
I am using an HTML <table> and I want to align the text of <td> to the center in each cell.
7 Answers
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How to upgrade all Python packages with pip?
Is it possible to upgrade all Python packages at one time with pip ?
55 Answers
55
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Is there a [Go to file…]?
In modern IDEs, there is a keyboard shortcut to open a file by typing its name without putting your hand on the mouse. For example:
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PHP - Move a file into a different folder on the server
I need to allow users on my website to delete their images off the server after they have uploaded them if they no longer want them. I was previously using the unlink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:)
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Send string to stdin
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You can use one-line heredoc
cat <<< "This is coming from the stdin"
the above is the same as
cat <<EOF
This is coming from the stdin
EOF
or you can redirect output from a command, like
diff <(ls /bin) ...
Why are C# interface methods not declared abstract or virtual?
C# methods in interfaces are declared without using the virtual keyword, and overridden in the derived class without using the override keyword.
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Stretch background image css?
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.style1 {
background: url(images/bg.jpg) no-repeat center center fixed;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}
Works in:
Safari 3+
Chrome Whatever+
IE 9+...
How to change a Git remote on Heroku
I do not want to upload my app to the wrong domain.
7 Answers
7
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Checking if a key exists in a JS object
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Use the in operator:
testArray = 'key1' in obj;
Sidenote: What you got there, is actually no jQuery object, but just a plain JavaScript Object.
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