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Animate visibility modes, GONE and VISIBLE
...n ExpandableListView, a special ListView that allows you to open and close groups.
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JOIN queries vs multiple queries
...Optimization
SELECT'ing (with multiple queries instead of joins) on large group of records based on a one-to-many relationship produces an optimal efficiency, as JOIN'ing has an exponential memory leak issue. Grab all of the data, then use a server-side scripting language to sort it out:
SELECT *...
SVG: text inside rect
...u want to display text inside a rect element you should put them both in a group with the text element coming after the rect element ( so it appears on top ).
<svg xmlns="http://www.w3.org/2000/svg">
<g>
<rect x="0" y="0" width="100" height="100" fill="red"></rect&g...
Find out whether radio button is checked with JQuery?
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If you have a group of radio buttons sharing the same name attribute and upon submit or some event you want to check if one of these radio buttons was checked, you can do this simply by the following code :
$(document).ready(function(){
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$(this).serialize() — How to add a value?
...xample :
<form method="POST" id="add-form">
<div class="form-group required ">
<label for="key">Enter key</label>
<input type="text" name="key" id="key" data-nonformdata="hai"/>
</div>
<div class="form-group required ">
...
How to undo another user’s checkout in TFS?
...r
Select Properties
Select the Security tab
Select the appropriate user or group in the Users and Groups section at the top
View the "Permissions for [user/group]:" section at the bottom
Deleting the workspace
tf workspace /delete WorkspaceName;User
/server:http://server:8080/tfs/MyT...
How to detect incoming calls, in an Android device?
...CALL_LOG, and PROCESS_OUTGOING_CALLS permissions from the PHONE permission group to the new CALL_LOG permission group. This group gives users better control and visibility to apps that need access to sensitive information about phone calls, such as reading phone call records and identifying phone nu...
Shading a kernel density plot between two points.
...here the quantile values depend on the variable by which the data is being grouped:
Code used
library(tidyverse)
library(RColorBrewer)
# dummy data
set.seed(1)
n <- 1e2
dt <- tibble(value = rnorm(n)^2)
# function that approximates the density at the provided values
approxdens <- funct...
Git push error: Unable to unlink old (Permission denied)
...rs. The first set represents the user class. The second set represents the group class. The third set represents the others class. The g+w in chmod gives the group set (the g parameter) permission to write (the w parameter)
– rfc1484
Dec 4 '16 at 9:59
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Uniq by object attribute in Ruby
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The hash method is better if you want to group by say album_id while (say) summing up num_plays.
– thekingoftruth
Sep 13 '13 at 22:59
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