How can I safely decide if a variable is a string of more than one characters?
- by Alan
I am using the following Javascript:
if (typeof content !== 'undefined' && content.length > 0) {
$state.transitionTo('admin.content', { content: content })
}
I thought this was safe to use but it gives me an error saying:
TypeError: Cannot read property 'length' of null
I am using the following function to decide if something is a number:
isNumber: function (num) {
// Return false if num is null or an empty string
if (num === null || (typeof num === "string" && num.length === 0)) {
return false;
}
var rtn = !isNaN(num)
return rtn;
},
How can I write a similar function that would very safely determine if
something is a string with a length of more than 0?
