JavaScript's way of determining whether prefixes and suffixes are Spaces
- 2020-05-30 19:22:14
- OfStack
The example in this article shows how JavaScript determines whether prefixes and suffixes are whitespace. Share with you for your reference. The details are as follows:
// Js Determine the suffix
String.prototype.endsWith = function(suffix) {
return this.indexOf(suffix,this.length - suffix.length)!==-1;
};
// Js Determine the prefix
if (typeof String.prototype.startsWith != 'function') {
// see below for better implementation!
String.prototype.startsWith = function (str){
return this.indexOf(str) == 0;
};
}
// Js Sentenced to empty ( All are blank )
String.prototype.IsNullEmptyOrSpace = function()
{
if (this== null) return true;
return this.replace(/s/g, '').length == 0;
};
I hope this article has been helpful to your javascript programming.