60 lines
1.4 KiB
JavaScript
Executable File
60 lines
1.4 KiB
JavaScript
Executable File
/** @module helpers */
|
|
|
|
"use strict";
|
|
|
|
if (!String.prototype.startsWith) {
|
|
Object.defineProperty(String.prototype, 'startsWith', {
|
|
enumerable: false,
|
|
configurable: false,
|
|
writable: false,
|
|
value: function (searchString, position) {
|
|
position = position || 0;
|
|
return this.lastIndexOf(searchString, position) === position;
|
|
}
|
|
});
|
|
}
|
|
|
|
if (!String.prototype.endsWith) {
|
|
Object.defineProperty(String.prototype, 'endsWith', {
|
|
value: function (searchString, position) {
|
|
var subjectString = this.toString();
|
|
if (position === undefined || position > subjectString.length) {
|
|
position = subjectString.length;
|
|
}
|
|
position -= searchString.length;
|
|
var lastIndex = subjectString.indexOf(searchString, position);
|
|
return lastIndex !== -1 && lastIndex === position;
|
|
}
|
|
});
|
|
}
|
|
|
|
module.exports = {
|
|
/**
|
|
* Split a string by a character, trim the string
|
|
* and rejoin the string
|
|
*
|
|
* @param {String} char
|
|
* @param {String} string
|
|
* @return {String}
|
|
*/
|
|
splitTrim: function(char, string) {
|
|
return string.split(char).map(String.trim).join(char);
|
|
},
|
|
/**
|
|
* Determine whether an object is a string
|
|
* @param {mixed} obj
|
|
* @return {bool}
|
|
*/
|
|
isString: function(obj) {
|
|
return (typeof obj === 'string' || obj instanceof String);
|
|
},
|
|
/**
|
|
* Determine whether an object is numeric
|
|
* @param {mixed} obj
|
|
* @return {bool}
|
|
*/
|
|
isNumber: function(obj) {
|
|
return ! isNaN(parseFloat(obj)) && isFinite(obj);
|
|
}
|
|
};
|