Nested functions?

JavaScript
1

This should be easy but I can not figure this out…

How do you do a nested function? Here are the snippets…
if(isAlphabet, trimAll(FirstName, “Please enter your first name”)){

function isAlphabet(elem, helperMsg){
var alphaExp = /[1]+$/;
if(elem.value.match(alphaExp)){
return true;
}else{
alert(helperMsg);
elem.focus();
return false;

Everything worked with my code but I was having a hard time submitting a form with more then one word in the text box. So I found this code…but can not figue out how to have the if statement to do both functions. Can you help, please?

Here’s the spaces function…

function trimAll( strValue ) {
var objRegExp = /^(\s*)$/;

//check for all spaces
if(objRegExp.test(strValue)) {
   strValue = strValue.replace(objRegExp, '');
   if( strValue.length == 0)
      return strValue;
}

//check for leading & trailing spaces
objRegExp = /^(\s*)([\W\w])(\b\s$)/;
if(objRegExp.test(strValue)) {
//remove leading and trailing whitespace characters
strValue = strValue.replace(objRegExp, ‘$2’);
}
return strValue;

  1. a-zA-Z ↩︎

2

if(isAlphabet, trimAll(FirstName, “Please enter your first name”)){

You call a function by nameoffunction(parameter1, parameter2). So above should be

if (isAlphabet(trimAll(FirstName), "Please enter your first name") {

That is call trimAll with a parameter FirstName and call isAlphabet with a first parmeter the result of the trimAll function and a second parameter the string.