Number masking & nls_parameter

Number masking & nls_parameter

By : Isael
Date : October 14 2020, 02:22 PM
hop of those help? Use TO_CHAR specifying a decimal character D in the format model appropriately
When your session's NLS_NUMERIC_CHARACTERS is ,. ( "decimal_character group_separator" ) by default or you've set it manually using
code :
alter session set NLS_NUMERIC_CHARACTERS = ',.'; 

select to_char(231.12, '99999D99')  from dual;
select to_char(231.12, '99999D99','NLS_NUMERIC_CHARACTERS='',.''')  from dual;


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GWT telephone number masking

GWT telephone number masking

By : mania_yan
Date : March 29 2020, 07:55 AM
like below fixes the issue A better approach would be to let the user type whatever they want: "789-555-1234" or "(789) 555-1234" or "7895551234" and then when the field loses focus decide if what they typed can be a phone number. If so you can reformat it as "(789) 555-1234". There are several related questions about how to do that sort of thing with regular expressions; just be sure your regex accepts the format you're changing the user's input to, otherwise it will be really annoying to edit.
As an example, look what happens when you type ".5" into the left margin field in Microsoft's standard page setup dialog: when you tab out it changes it to "0.5".
code :
private void reformatPhone(TextBox phoneField) {
    String text = phoneField.getText();
    text = text.replaceAll("\\D+", "");
    if (text.length() == 10) {
        phoneField.setText("(" + text.substring(0, 3) + ") " + text.substring(3, 6) + "-" + text.substring(6, 10));

public void onModuleLoad() {
    final TextBox phoneField = new TextBox();

    phoneField.addBlurHandler(new BlurHandler(){
        public void onBlur(BlurEvent event) {
How to count number of switches and switch corresponding number of LEDs by applying masking?

How to count number of switches and switch corresponding number of LEDs by applying masking?

By : CliveJeez
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I am using an DE0 board and wanted to count number of slide switches in ON position (there are 10 of these), and then lit corresponding number of LED (10 of these too) on the board. However I don't know how to use the result from masking to the IOWR. Thank you , Function CountSWITCHES is not correct, should be:
code :
int CountSWITCHES(alt_u16 sw)
    alt_u16 mask = 1;

    for(i = 0; i < 10; i++)
        if (sw & mask)

        mask = mask << 1;

    return count;    
Why does masking a negative number produce a positive number?

Why does masking a negative number produce a positive number?

By : Jyothi
Date : March 29 2020, 07:55 AM
help you fix your problem It looks like your system uses 32-bit ints with two's complement representation of negatives.
Constant 0xFFFF covers the least significant two bytes, with the upper two bytes are zero.
code :
int16_t x = -3;
x &= 0xffff;
cout << x;
Masking number at a particular position

Masking number at a particular position

By : Olaf Xu
Date : March 29 2020, 07:55 AM
help you fix your problem The process to achieving what you want varies depending on whether:
you want to mask the value after the it has been entered or you want to mask the value during typing.
code :
  /* The original value. */
  n = "784198012345671",
  /* The masked value. */
  masked = n.slice(0, 3) + Array(8).join("*") + n.slice(-4);

/* Log the result. */
$(".newsocial").on("keyup", function(e) {
  /* Turn the value into an array of characters. */
  var value = this.value.split("");
  /* Iterate over every character. */
  value.forEach(function (char, index) {
    /* Replace the character with a placeholder when appropriate. */
    if (index >= 3 && index <= 10) value[index] = "*";
  /* Turn the array of chars into a string & assign it to the value of the input. */ 
  this.value = value.join("");
<!--- HTML --->
<script src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" maxlength="15" id="input-card" class="newsocial">
How to masking the last number in Swift?

How to masking the last number in Swift?

By : Ntandwenhle Dlungwan
Date : March 29 2020, 07:55 AM
may help you . How to mask the last string using swift, I have made the code as below. but the code only shows the last number, my expectation is that the code displays the first 5 digits , Use a prefix instead of a suffix
code :
extension StringProtocol {
    var masked: String {
        return prefix(5) + String(repeating: "•", count: Swift.max(0, count-5))
extension StringProtocol {
    func masked(_ n: Int = 5, reversed: Bool = false) -> String {
        let mask = String(repeating: "•", count: Swift.max(0, count-n))
        return reversed ? mask + suffix(n) : prefix(n) + mask

var name = "0123456789"

// 01234•••••

print(name.masked(5, reversed: true)) 
// •••••56789
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