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Why is SELECT * considered harmful?
Why is SELECT * bad practice? Wouldn't it mean less code to change if you added a new column you wanted?
15 Answers
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Which MySQL data type to use for storing boolean values
...iate because it uses zero data bytes:
some_flag CHAR(0) DEFAULT NULL
To set it to true, set some_flag = '' and to set it to false, set some_flag = NULL.
Then to test for true, check if some_flag IS NOT NULL, and to test for false, check if some_flag IS NULL.
(This method is described in "High P...
Programmatically change UITextField Keyboard type
...de should read
if(user is prompted for numeric input only)
[textField setKeyboardType:UIKeyboardTypeNumberPad];
if(user is prompted for alphanumeric input)
[textField setKeyboardType:UIKeyboardTypeDefault];
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Change color of UISwitch in “off” state
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THIS is correct answer:) setTint changes the "outline" colour as well which visually "hides" the background on white background.
– Lukasz 'Severiaan' Grela
Jul 30 '14 at 10:14
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restrict edittext to single line
...ing android:singleLine="true" is deprecated.
Just add your input type and set maxline to 1 and everything will work fine
android:inputType="text"
android:maxLines="1"
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how to reset
... the actual jQuery call it's pretty easy to see what jQuery is doing, just setting the value attribute to an empty string. So in "pure" JavaScript it would be:
document.getElementById("uploadCaptureInputFile").value = "";
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Why it's not possible to use regex to parse HTML/XML: a formal explanation in layman's terms
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Android Layout with ListView and Buttons
...tons, but preventing it from covering them up when the list is long, is to set android:layout_weight="1.0" on the ListView. Leave the layout_weight on the buttons unset so that they remain at their natural size, otherwise the buttons will get scaled. This works with LinearLayout.
There's an example...
How to output only captured groups with sed?
...wing insertion of a newline in the pattern space, one suggestion is:
> set string = "This is a sample 123 text and some 987 numbers"
>
> set pattern = "[0-9][0-9]*"
> echo $string | sed "s/$pattern/\n&\n/g" | sed -n "/$pattern/p"
123
987
> set pattern = "[a-z][a-z]*"
> echo $s...
How to resize the jQuery DatePicker control
...t 1.5 times as big as the demo on the jQuery UI page. Is there some simple setting I'm missing to control the size?
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