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Center a button in a Linear layout
...
If you want to center an item in the middle of the screen don't use a LinearLayout as these are meant for displaying a number of items in a row.
Use a RelativeLayout instead.
So replace:
android:layout_gravity="center_vertical|center_horizontal"...
How to format numbers as currency string?
...or)
/*
according to [https://stackoverflow.com/questions/411352/how-best-to-determine-if-an-argument-is-not-sent-to-the-javascript-function]
the fastest way to check for not defined parameter is to use typeof value === 'undefined'
rather than doing value === undefined.
*/
t = ...
“document.getElementByClass is not a function”
...bably meant document.getElementsByClassName() (and then grabbing the first item off the resulting node list):
var stopMusicExt = document.getElementsByClassName("stopButton")[0];
stopButton.onclick = function() {
var ta = document.getElementsByClassName("stopButton")[0];
document['player']...
Check if option is selected with jQuery, if not select a default
... help some people I'm sure.
To check if a select element has any selected items:
if ($('#mySelect option:selected').length > 0) { alert('has a selected item'); }
or to check if a select has nothing selected:
if ($('#mySelect option:selected').length == 0) { alert('nothing selected'); }
or ...
Build a Basic Python Iterator
...2.x))
create a class that Python can iterate over on its own (defines __getitem__)
Examples:
# generator
def uc_gen(text):
for char in text.upper():
yield char
# generator expression
def uc_genexp(text):
return (char for char in text.upper())
# iterator protocol
class uc_iter():...
Ruby capitalize every word first letter
...n the &:method syntax in map is a concise way to call a method on each item in the array. You can then call join to turn that array into a string. The * ' ' is an alternative way to call join. You can think of it as multiplying the items in the array together to create a string.
...
How do I split a string, breaking at a particular character?
...le.log(state); // NY
console.log(zip); // 12345
You may have extra items in the input string. In this case, you can use rest operator to get an array for the rest or just ignore them:
const input = 'john smith~123 Street~Apt 4~New York~NY~12345';
const [name, street, ...others] = in...
how to edit .csproj file
...st install this tool in visual studio
https://marketplace.visualstudio.com/items?itemName=EdMunoz.EditProj
and then right click edit you will have a new menu item Edit Project File :)
share
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imp...
What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
...tion of cause we need to use NOT operations and thats why they are exists. Best practise is it avoid them when we have any other alternative solutions.
– Lahiru Cooray
Jun 13 '16 at 3:47
...
Map vs Object in JavaScript
...mark of this but not an exhaustive one (setting/getting) of which performs best with a small number of keys in the above operations. This test is more about memory and initialization.
Map Create: 69 // new Map
Object Create: 34 // {}
Again these figures vary but basically Object has a good lead....