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This commit is contained in:
Max Lynch
2015-05-05 14:01:55 -05:00
parent eac1ef7508
commit a6d2ea490a
1 changed files with 37 additions and 4 deletions
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41
ionic/util/util.js
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@ -1,18 +1,36 @@
// Simple noop function
export function noop() {};
/**
* Given a min and max, restrict the given number
* to the range.
* @param min the minimum
* @param n the value
* @param max the maximum
*/
export function clamp(min, n, max) {
return Math.max(min, Math.min(n, max));
}
/**
* Extend the destination with an arbitrary number of other objects.
* @param dst the destination
* @param ... the param objects
*/
export function extend(dst) {
return baseExtend(dst, [].slice.call(arguments, 1), false);
return _baseExtend(dst, [].slice.call(arguments, 1), false);
}
/**
* Do a deep extend (merge).
* @param dst the destination
* @param ... the param objects
*/
export function merge(dst) {
return baseExtend(dst, [].slice.call(arguments, 1), true);
return _baseExtend(dst, [].slice.call(arguments, 1), true);
}
function baseExtend(dst, objs, deep) {
function _baseExtend(dst, objs, deep) {
for (var i = 0, ii = objs.length; i < ii; ++i) {
var obj = objs[i];
if (!isObject(obj) && !isFunction(obj)) continue;
@ -23,7 +41,7 @@ function baseExtend(dst, objs, deep) {
if (deep && isObject(src)) {
if (!isObject(dst[key])) dst[key] = isArray(src) ? [] : {};
baseExtend(dst[key], [src], true);
_baseExtend(dst[key], [src], true);
} else {
dst[key] = src;
}
@ -33,6 +51,11 @@ function baseExtend(dst, objs, deep) {
return dst;
}
/**
* Apply default arguments if they don't exist in
* the first object.
* @param the destination to apply defaults to.
*/
export function defaults(dest) {
for (let i = arguments.length - 1; i >= 1; i--) {
let source = arguments[i] || {};
@ -52,6 +75,9 @@ export const isUndefined = val => typeof val === 'undefined'
export const isObject = val => typeof val === 'object'
export const isArray = Array.isArray
/**
* Convert a string in the format thisIsAString to a slug format this-is-a-string
*/
export function pascalCaseToDashCase(str = '') {
return str.charAt(0).toLowerCase() + str.substring(1).replace(/[A-Z]/g, match => {
return '-' + match.toLowerCase();
@ -63,6 +89,9 @@ export function nextUid() {
return ++uid;
}
/**
* A simple logger class.
*/
export class Log {
static log(...args) {
console.log.apply(console, args);
@ -94,6 +123,10 @@ export let array = {
}
}
/**
* Grab the query string param value for the given key.
* @param key the key to look for
*/
export function getQuerystring(key) {
var queryParams = {};
const startIndex = window.location.href.indexOf('?');