Allow only two special characters (&, - ) in TextBox using JavaScript

Question

Check if string contains any of these charactersltgtIf a string contains any of these characters then return false else return truePlease note In above special characters I have not listed amp and  because I want to allow these two special charactersPlease provide regex for both Javascript and C

dharmendr · Accepted Answer

Hi EmadKhanRefer the below samplelthtml xmlns34httpwwww3org1999xhtml34gtlthead runat34server34gt    lttitlegtlttitlegt    ltstyle type34textcss34gt        body                    fontsize 9pt            fontfamily Arial            ltstylegt    ltscript type34textjavascript34gt        var specialKeys  new Array        specialKeyspush96           specialKeyspush126          specialKeyspush33           specialKeyspush64           specialKeyspush35           specialKeyspush36           specialKeyspush37           specialKeyspush94           specialKeyspush42           specialKeyspush40            specialKeyspush41           specialKeyspush95            specialKeyspush61           specialKeyspush43           specialKeyspush91            specialKeyspush123          specialKeyspush93            s

Allow only two special characters (&, - ) in TextBox using JavaScript

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