function to combine two or more arrays
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i am making a purchase sheet in html ,it contain names of product(by selecting checkboxes),quantity(textbox) and price(checbox), by using java script i am restricting the user to prevent them to enter the wrong data ,so i made the servlet were i am only able to prevent them to enter the page in empty field , so my doubt is how do you prevent them how to enter non numerical data in quantity field
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write a program segment that will ask the user if he wants to computer the perimeter of the area of the triangle. if the perimeter is wanted, ask the measure of the three sides and compute for the perimeter. if the area is wanted, ask for the measures of the base and height and compute for the area. display the computed value
<html> <head> <title>BASIC CALCULATOR</title> </head> <script language= "javascript"> function= setValue(){ var a_term1 </script> <body> <center> <table> <tr> <td><input type="text" id="text box1" style="width:50px"> </td> <td><input type="text" id="text box2" style="width:40px"> </td> <td><input type="text" id="text box3" style="width:50px"> </td> </tr> </table> <table> <tr> <td><input type="text" id="text box4" ></td> </tr> </table> <table> <tr> <td><input type= "button" value= "7" onClick="" ></td> <td><input type= "button" value= "8" onClick="" ></td> <td><input type= "button" value= "9" onClick="" ></td> <td><input type= "button" value= "/" onClick="" ></td> </tr> <td><input type= "button" value= "4" onClick="" ></td> <td><input type= "button" value= "5" onClick="" ></td> <td><input type= "button" value= "6" onClick="" ></td> <td><input type= "button" value= "*" onClick="" ></td> </tr> <td><input type= "button" value= "1" onClick="" ></td> <td><input type= "button" value= "2" onClick="" ></td> <td><input type= "button" value= "3" onClick="" ></td> <td><input type= "button" value= "-" onClick="" ></td> </tr> <td><input type= "button" value= "0" onClick="" ></td> <td><input type= "button" value= "C" onClick="" ></td> <td><input type= "button" value= "=" onClick="" ></td> <td><input type= "button" value= "+" OnClick="" ></td> </table> </center> </body> <hr/> </html> how do i make the calculator work now
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I have a doubt regarding including tags in a function. I have written a function in javascript in a html page. The function got called by clicking a button, i want to display the results in same html page by placing tags in the function. (this hmtl page is static page) Is this possible? example: <SCRIPT LANGUAGE=javascript> function calSubmit_onclick() { var xyz=0; .......... .......... document.write("<lable>"+xyz+"</label>"); /*Is it possible*/ }
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