Function to allow numbers only using Regex

Regex to allow numbers only Solution In JQuery var checkNumbers = function (textBox) { debugger; var regexp = new RegExp('^[0-9]+$'); var check = textBox.value; if (!regexp.test(check)) { alert('Invalid Value. Please enter numbers only'); $(textBox).css('border-color', 'red'); return false; } else { $(textBox).css('border-color', 'green'); $(textBox).value = check; return true; } } In HTML @Html.TextBox("AddAge", null, new {... Continue Reading →

Function to validate Date of Birth using Regex

Regex to validate date of birth Solution In Jquery var checkDOB = function () { debugger; var regexp = new RegExp( '^(0[1-9]|1[012])[/](0[1-9]|[12][0-9]|3[01])[/](19|20)\\d\\d$'); var check = $("#AddDateOfBirth").val(); if (!regexp.test(check)) { alert('Invalid Format. Please Enter: dd/mm/yyyy'); $('#AddDateOfBirth').css('border-color', 'red'); return false; } else { $('#AddDateOfBirth').css('border-color', 'green'); return true; } } In HTML @Html.TextBox("AddDateOfBirth", null, new { @class =... Continue Reading →

Object Operators in PHP

Answer There are two object operators in PHP. The symbols are -> and :: -> Operator The object operator -> is used when you have to access an Instance property or call a method just like a dot (.) in other languages. For example, if there is a 'Students' class that includes the method 'Marks',... Continue Reading →

What is PSS of a process?

Answer The "proportional set size" or PSS of process is the sum of the unshared memory of a process and the proportion of memory shared with other processes. Formula: unshared memory of a process + (memory shared with other processes /number of processes that share memory) We'll understand through an example Example Process A has... Continue Reading →

Compound/Assignment Operators in Different Languages

NameCompound OperatorsSQLC++JavaPHPJavaScriptPython Add Equals+=+=+=+=+=+=Subtract Equals-=-=-=-+-=-=Multiply Equals *=*=*=*=*=*=Divide Equals /=/=/=/=/=/=Modulo Equals %=%=%=%=%=%=Bitwise AND Equals &=&=&= &= &=Bitwise Exclusive Equals ^-= ^=^=^=^=Bitwise OR Equals |*= |=|=|=|= Compound left-shift <<= <<=<<=<<= Compound right-shift >>=>>=>>=>>= Compound right-shift filled 0 >>>=>>>=Exponentiation assignment**=**=Integer division assignment//=

Function to validate CNIC using Regex

Solution In JQuery var checkCNIC = function (textBox) { debugger; var regexp = new RegExp('^[0-9+]{5}-[0-9+]{7}-[0-9]{1}$'); var check = textBox.value; if (!regexp.test(check)) { alert('Invalid CNIC'); $(textBox).css('border-color', 'red'); return false; } else { $(textBox).css('border-color', 'green'); $(textBox).value = check; return true; } } In HTML @Html.TextBox("AddCNIC", null, new { @class = "form-control text-box", @placeholder = "11111-1111111-1", @onchange =... Continue Reading →

Bitwise and Bitshift Operators in Different Languages

NameLanguagesOperatorExplanationExampleBitwise ANDJava /Python/C/PHP/Javascript /SQL & The & operator compares corresponding bits of two operands. If both bits are 1, it gives 1. If either of the bits is not 1, it gives 0.  a = 55 & 21; Bitwise ORJava /Python/C /PHP/Javascript /SQL | The | operator compares corresponding bits of two operands. If either of the bits is... Continue Reading →

Conditional or ternary Operator in Different Languages

? is the conditional operator or the ternary operator. This operator consists of three operands and is used to evaluate Boolean expressions. The goal of the operator is to decide; which value should be assigned to the variable. SyntaxExampleExplanationC/Java/Javascript/C# conditionalExpression ? expression1 : expression2 days= (February == '1') ? 29 : 28; If February is... Continue Reading →

Comparison Operators in Different Languages

NameComparison OperatorsPython/Java/C/C#Javascript PHPSQLPowershellEqual to=======-eqGreater than>>>>-gtLess than<<<<-ltGreater than or Equal to>=>=>=>=-geLess than or Equal to<=<=<=<=-leNot Equal to!=!=!=<>-neIdentical===Not Identical!==Spaceship <=>  Equal value and equal type === Not equal value or not equal type !==Wildcard Comparison-likeWildcard Comparison -notlikeRegular Expression Comparison-match Regular Expression Comparison -notmatchReplace Operator-replace Containment operator -containsContainment operator -notcontains Like –contains, but with the operands reversed.(PowerShell 3.0)... Continue Reading →

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