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What do commas and spaces in multiple classes mean in CSS?
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.container_12 .grid_6,
.container_16 .grid_8 {
width: 460px;
}
That says "make all .grid_6's within .container_12's and all .grid_8's within .container_16's 460 pixels wide." So both of the following will render the same:
<div class...
How do you set EditText to only accept numeric values in Android?
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Add android:inputType="number" as an XML attribute.
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When to use symbols instead of strings in Ruby?
...;DR
A simple rule of thumb is to use symbols every time you need internal identifiers. For Ruby < 2.2 only use symbols when they aren't generated dynamically, to avoid memory leaks.
Full answer
The only reason not to use them for identifiers that are generated dynamically is because of memory ...
When should I use a table variable vs temporary table in sql server?
...o object types. This also addresses your question about disk vs memory (I didn't see any significant difference in behaviour between the two).
Regarding the question in the title though as to when to use a table variable vs a local temporary table you don't always have a choice. In functions, for e...
HTML5 form required attribute. Set custom validation message?
I've got the following HTML5 form: http://jsfiddle.net/nfgfP/
14 Answers
14
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How to search by key=>value in a multidimensional array in PHP
...ny fast way to get all subarrays where a key value pair was found in a multidimensional array? I can't say how deep the array will be.
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JavaScript file upload size validation
...is browser yet.");
return;
}
input = document.getElementById('fileinput');
if (!input) {
bodyAppend("p", "Um, couldn't find the fileinput element.");
}
else if (!input.files) {
bodyAppend("p", "This browser doesn't seem to support the `files` property of ...
Convert JSON string to dict using Python
... edited Jul 24 '18 at 8:28
David Leon
89177 silver badges2121 bronze badges
answered Dec 24 '10 at 19:51
Ign...
Submit form using a button outside the tag
...he spec says
The elements used to create controls generally appear inside a FORM
element, but may also appear outside of a FORM element declaration
when they are used to build user interfaces. This is discussed in the
section on intrinsic events. Note that controls outside a form cannot
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Changing ImageView source
...rawable(getResources().getDrawable(R.drawable.monkey));
*** With new android API 22 getResources().getDrawable() is now deprecated. This is an example how to use now:
myImgView.setImageDrawable(getResources().getDrawable(R.drawable.monkey, getApplicationContext().getTheme()));
and how to validate ...