Check whether the first character is a space
input, jquery, textfield, validation
Solution
You can use `myString.substring(0,1)` or `myString[0]` to get the first character.
You can trim the input; this doesn't check whether or not it starts with a space, it makes such a check redundant and gives you usable input regardless of whether or not the original string had an initial space.
You could also match the string for `/^\s/` which means an initial whitespace, or `/^\s+/` meaning any number of initial whitespace.
Problem
How can I check if the first character of the input field is an empty space or not with jQuery? I would need to check so that users can't enter a username like " rreea". Empty spaces after the first character are allowed. For example, "his name" is okay, but " his name" or " hisname" are not accepted.