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export function toInteger(value: any): number {
return parseInt(`${value}`, 10);
}
export function toString(value: any): string {
return (value !== undefined && value !== null) ? `${value}` : '';
}
export function getValueInRange(value: number, max: number, min = 0): number {
return Math.max(Math.min(value, max), min);
}
export function isString(value: any): boolean {
return typeof value === 'string';
}
export function isNumber(value: any): boolean {
return !isNaN(toInteger(value));
}
export function isInteger(value: any): boolean {
return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
}
export function isDefined(value: any): boolean {
return value !== undefined && value !== null;
}
export function padNumber(value: number) {
if (isNumber(value)) {
return `0${value}`.slice(-2);
} else {
return '';
}
}
export function regExpEscape(text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
}
export function parseDate(date: Date, format) {
let o = {
'M+': date.getMonth() + 1, // month
'd+': date.getDate(), // day
'h+': date.getHours(), // hour
'm+': date.getMinutes(), // minute
's+': date.getSeconds(), // second
'q+': Math.floor((date.getMonth() + 3) / 3), // quarter
'S': date.getMilliseconds() // millisecond
};
if (/(y+)/.test(format)) {
format = format.replace(RegExp.$1,
(date.getFullYear() + '').substr(4 - RegExp.$1.length));
}
for (let k in o) {
if (new RegExp('(' + k + ')').test(format)) {
format = format.replace(RegExp.$1,
RegExp.$1.length === 1 ? o[k] :
('00' + o[k]).substr(('' + o[k]).length));
}
}
return format;
}
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