Mere Javascript Code

if (!this.mere) {var mere = {}}

mere.str = {
	trim: function(str) {
		return str.replace(/^\s*|\s*$/g,"")
	},

	capitalize: function(str) {
		if (str.length == 0) return new String(str)
		return str.substring(0,1).toUpperCase() + str.substring(1)
	},

	endsWith: function(str, suffix) {
		if (suffix == null) throw new Error('Illegal argument: ' + suffix)
		var position = str.length - suffix.length
		if (position < 0) return false
		return str.lastIndexOf(suffix, position) == position;
	},

	startsWith: function(str, prefix) {
		if (prefix == null) throw new Error('Illegal argument: ' + prefix)
		return str.substring(0, prefix.length) == prefix
	}
}