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Swift - which types to use? NSString or String
...e String from repeating values:
let repeatingString = String(repeating:"123", count:2) // "123123"
In Swift 4 -> Strings Are Collection Of Characters:
Now String is capable of performing all operations which anyone can
perform on Collection type.
For more information please refer a...
Get all child views inside LinearLayout at once
...
Get all views of a view plus its children recursively in Kotlin:
private fun View.getAllViews(): List<View> {
if (this !is ViewGroup || childCount == 0) return listOf(this)
return children
.toList()
.flatMap { it.getAllViews() }
.plus(this as View...
Adding a column to a data.frame
...onsecutive number len times
get.seq <- mapply(from, to, 1:length(from), FUN = function(x, y, z) {
len <- length(seq(from = x[1], to = y[1]))
return(rep(z, times = len))
})
# when we unlist, we get a vector
your.df$group <- unlist(get.seq)
# and append it to...
Clear the cache in JavaScript
...evision number or last updated timestamp to the file, like this:
myscript.123.js
or
myscript.js?updated=1234567890
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File Upload without Form
...e with properties of file_field to form_data
form_data.append("user_id", 123) // Adding extra parameters to form_data
$.ajax({
url: "/upload_avatar", // Upload Script
dataType: 'script',
cache: false,
contentType: false,
processData: false,
data: form_data, // Setting the...
Are there any Java method ordering conventions? [closed]
...
123
Class (static) variables: First the public class variables, then the
protected, and then the ...
Serializing class instance to JSON
...dict__) returns proper data in the format of: {"value2": "345", "value1": "123"} I had seen posts like this before, wasn't sure whether I needed a custom serializer for members, needing init wasn't mentioned explicitly or I missed it. Thank you.
– ferhan
Apr 2...
Mechanisms for tracking DB schema changes [closed]
...the team. I've faced this problem for many years, and was inspired by the functionality of Visual Studio for Database professionals. If you want an open-source tool with the same features, try this: http://dbsourcetools.codeplex.com/
Have fun,
- Nathan.
...
Difference between Visibility.Collapsed and Visibility.Hidden
...avigate o different pages and do stuff
– software is fun
Apr 30 '15 at 14:58
In Chrome, we had to use <div style="d...
Generate random password string with requirements in javascript
...Password = {
_pattern : /[a-zA-Z0-9_\-\+\.]/,
_getRandomByte : function()
{
// http://caniuse.com/#feat=getrandomvalues
if(window.crypto && window.crypto.getRandomValues)
{
var result = new Uint8Array(1);
window.crypto.getRandomValues(result);
ret...