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What is a 'Closure'?
...ere else, in its "surrounding context" (also known as the environment). At least that's what we hope for :P
For example, it could be defined globally:
var y = 7;
function open(x) {
return x*y + 3;
}
Or it could be defined in a function which wraps it:
var global = 2;
function wrapper(y) {
...
jQuery - checkbox enable/disable
...jquery/3.3.1/jquery.min.js"></script>
<form name="frmChkForm" id="frmChkForm">
<input type="checkbox" name="chkcc9" id="group1">Check Me <br>
<input type="checkbox" name="chk9[120]" class="group1"><br>
<input type="checkbox" name="chk9[140]" class=...
How do I drop a foreign key constraint only if it exists in sql server?
...
The more simple solution is provided in Eric Isaacs's answer. However, it will find constraints on any table. If you want to target a foreign key constraint on a specific table, use this:
IF EXISTS (SELECT *
FROM sys.foreign_keys
WHERE object_id = O...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
...23.45;
number = @YES;
[Edit]
zxoq at http://news.ycombinator.com/item?id=3672744 has added more interesting new subscripting. (Added with literals):
arr[1] === [arr objectAtIndex:1]
dict[@"key"] === [dict objectForKey:@"key"]
[Edit 2]
The new ObjC literals were discussed in multiple ...
How to implement WiX installer upgrade?
...a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades="no" DowngradeErrorMessage="!(loc.NewerVersionInstalled)"
AllowSameVersionUpgrades="no"
/>
...
Passing parameters in rails redirect_to
How do we pass parameters in redirect_to in rails?
I know we can pass id using this:
9 Answers
...
CSS How to set div height 100% minus nPx
...efox / IE7 / Safari / Chrome / Opera.
* {margin:0px;padding:0px;overflow:hidden}
div {position:absolute}
div#header {top:0px;left:0px;right:0px;height:60px}
div#wrapper {top:60px;left:0px;right:0px;bottom:0px;}
div#left {top:0px;bottom:0px;left:0px;width:50%;overflow-y:auto}
div#right {top:0px;bott...
document.getElementById vs jQuery $()
...
Not exactly!!
document.getElementById('contents'); //returns a HTML DOM Object
var contents = $('#contents'); //returns a jQuery Object
In jQuery, to get the same result as document.getElementById, you can access the jQuery Object and get the first eleme...
How to programmatically set the layout_align_parent_right attribute of a Button in Relative Layout?
...lativeLayout.ALIGN_PARENT_RIGHT);
params.addRule(RelativeLayout.LEFT_OF, R.id.id_to_be_left_of);
button.setLayoutParams(params); //causes layout update
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How can I get LINQ to return the object which has the max value for a given property? [duplicate]
...l loop through only once.
Item biggest = items.Aggregate((i1,i2) => i1.ID > i2.ID ? i1 : i2);
Thanks Nick - Here's the proof
class Program
{
static void Main(string[] args)
{
IEnumerable<Item> items1 = new List<Item>()
{
new Item(){ ClientID ...