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How to get multiple selected values of select box in php?
I have a html form which has a select list box from which you can select multiple values because its multiple property is set to multiple. Consider form method is 'GET'. The html code for the form is as follows:
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How to access component methods from “outside” in ReactJS?
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React provides an interface for what you are trying to do via the ref attribute. Assign a component a ref, and its current attribute will be your custom component:
class Parent extends React.Class {
constructor(props) {
this._child = React....
Python: Tuples/dictionaries as keys, select, sort
...so on.
I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
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ViewPager and fragments — what's the right way to store fragment's state?
Fragments seem to be very nice for separation of UI logic into some modules. But along with ViewPager its lifecycle is still misty to me. So Guru thoughts are badly needed!
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How to check if a map contains a key in Go?
...lue with a key that is not present in the
map will return the zero value for the type of the entries in the map.
For instance, if the map contains integers, looking up a non-existent
key will return 0. A set can be implemented as a map with value type
bool. Set the map entry to true to put t...
Constructors in JavaScript objects
...e in the latter case it will know that it's Foo being called. Very helpful for debugging.
– Joachim Isaksson
Oct 21 '13 at 11:36
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show 12 m...
How to remove non-alphanumeric characters?
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For unicode characters, it is :
preg_replace("/[^[:alnum:][:space:]]/u", '', $string);
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How to access object attribute given string corresponding to name of that attribute
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There is also delattr for deleting attributes, but this is rarely used.
– Dave Kirby
Apr 10 '10 at 7:33
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iReport not starting using JRE 8
...an do the following:
1) Download the iReport-5.6.0.zip from https://sourceforge.net/projects/ireport/files/iReport/iReport-5.6.0/
2) Download jre-7u67-windows-x64.tar.gz (the one packed in a tar) from https://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.ht...
How to pass arguments to a Button command in Tkinter?
... in such a scenario, because imo it's clearer and simpler and also doesn't force you to write lots of wrapper methods if you don't have control over the called method, but that's certainly a matter of taste.
That's how you'd do it with a lambda (note there's also some implementation of currying in ...