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Set variable in jinja
... can we create a global jinja variable and use it throughout the html file in which we embed the jinja variable? @Soviut
– Sri Test
Jun 19 at 12:48
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Convert string to number and add one
I want to turn the value I get from the id into a number and add one to it then pass the new value into the dosomething() function to use. When I tried this and the value is one I get back 11 not 2.
...
Get selected value/text from Select on change
...g JavaScript
<script>
function val() {
d = document.getElementById("select_id").value;
alert(d);
}
</script>
<select onchange="val()" id="select_id">
Using jQuery
$('#select_id').change(function(){
alert($(this).val());
})
...
MySQL - UPDATE query based on SELECT Query
...syntax:
UPDATE tableA a
INNER JOIN tableB b ON a.name_a = b.name_b
SET validation_check = if(start_dts > end_dts, 'VALID', '')
-- where clause can go here
ANSI SQL syntax:
UPDATE tableA SET validation_check =
(SELECT if(start_DTS > end_DTS, 'VALID', '') AS validation_check
FRO...
Android Layout with ListView and Buttons
...<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content" an...
How to check if a Constraint exists in Sql server?
...E, PRIMARY KEY, FOREIGN KEY, and/or DEFAULT
SELECT
OBJECT_NAME(OBJECT_ID) AS NameofConstraint
,SCHEMA_NAME(schema_id) AS SchemaName
,OBJECT_NAME(parent_object_id) AS TableName
,type_desc AS ConstraintType
FROM sys.objects
WHERE type_desc LIKE '%CONSTRAINT'
...
How to remove item from list in C#?
...ou can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When you are not sure the item really exists you can use SingleOrDefault. SingleOrDefault will return null if there is no item (Single will throw an exception when it can't find th...
querySelector search immediate children
...ves that is not to their liking), is that they check to see if elem has an ID, and if not, they temporarily add an ID, then create a full selector string.
Basically you'd do:
var sel = '> someselector';
var hadId = true;
if( !elem.id ) {
hadID = false;
elem.id = 'some_unique_value';
}
...
Programmatically update widget from activity/service/receiver
...ow it's possible, but I can't figure out a way to trigger an update of my widget from the main activity. Isn't there some general intent I can broadcast?
...
Modifying location.hash without page scrolling
...
Step 1: You need to defuse the node ID, until the hash has been set. This is done by removing the ID off the node while the hash is being set, and then adding it back on.
hash = hash.replace( /^#/, '' );
var node = $( '#' + hash );
if ( node.length ) {
node....