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jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)
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agreed. i have an example at tarbuilders.com. if you click "contact", the form checks the user input on the fly and if it's valid, there's a green border and check mark. invalid -> red and "x"
– Keith Bentrup
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How to use background thread in swift?
...ntral-dispatch/
//This will print synchronously means, it will print 1-9 & 100-109
func simpleQueues() {
let queue = DispatchQueue(label: "com.appcoda.myqueue")
queue.sync {
for i in 0..<10 {
print("????", i)
}
}
for i in 100..<110 {
p...
Storing Python dictionaries
I'm used to bringing data in and out of Python using CSV files, but there are obvious challenges to this. Are there simple ways to store a dictionary (or sets of dictionaries) in a JSON or pickle file?
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Excel Date to String conversion
...es the English formats. Mine uses the Dutch formats which means that for example "DD/MM/YYYY hh:mm:ss" becomes "DD/MM/JJJJ uu:mm:ss" because in Dutch, 'year' is 'jaar' and 'hour' is 'uur' i.e. other starting letters (while 'day', 'month', 'minutes' and 'seconds' start with the same letters in both D...
How to delete all data from solr and hbase
...te?stream.body=<delete><query>*:*</query></delete>&commit=true
(replace [core name] with the name of the core you want to delete from). Or use this if posting data xml data:
<delete><query>*:*</query></delete>
Be sure you use commit=true to co...
How do I use a custom Serializer with Jackson?
...ad "main" java.lang.IllegalArgumentException: JsonSerializer of type com.example.JsonTest$UserSerilizer does not define valid handledType() (use alternative registration method?) at org.codehaus.jackson.map.module.SimpleSerializers.addSerializer(SimpleSerializers.java:62) at org.codehaus.jackson.m...
How to control the line spacing in UILabel
... or create multiple labels."
See: Set UILabel line spacing
This is a really old answer, and other have already addded the new and better way to handle this.. Please see the up to date answers provided below.
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How to display hidden characters by default (ZERO WIDTH SPACE ie. &#8203)
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i used this in a php script to make very well formatted HTML content for migration into WordPress: $string = preg_replace( '/[^\x00-\x7F]/', null, $string ); htmlspecialchars_decode( htmlentities( html_entity_decode( $string ) ) );
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Why does the Scala compiler disallow overloaded methods with default arguments?
... such method overloadings could become ambiguous, why does the compiler disallow code which is neither ambiguous at compile time nor at run time?
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Alternate output format for psql
...with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read.
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