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// Source: https://medium.com/@minaluke/typescript-compose-function-b7512a7cc012 | |
type ArityOneFn = (arg: any) => any | |
type PickLastInTuple<T extends any[]> = T extends [ | |
...rest: infer U, | |
argn: infer L | |
] | |
? L | |
: never | |
type FirstFnParameterType<T extends any[]> = Parameters<PickLastInTuple<T>>[any] | |
type LastFnParameterType<T extends any[]> = ReturnType<T[0]> |
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// ⚠ IMPORTANT: this is old and doesn't work for many different edge cases but I'll keep it as-is for any of you want it | |
// ⚠ IMPORTANT: you can find more robust versions in the comments or use a library implementation such as lodash's `merge` | |
// Merge a `source` object to a `target` recursively | |
const merge = (target, source) => { | |
// Iterate through `source` properties and if an `Object` set property to merge of `target` and `source` properties | |
for (const key of Object.keys(source)) { | |
if (source[key] instanceof Object) Object.assign(source[key], merge(target[key], source[key])) | |
} |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
,elem.offsetTop
,elem.offsetWidth
,elem.offsetHeight
,elem.offsetParent
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//events - a super-basic Javascript (publish subscribe) pattern | |
var events = { | |
events: {}, | |
on: function (eventName, fn) { | |
this.events[eventName] = this.events[eventName] || []; | |
this.events[eventName].push(fn); | |
}, | |
off: function(eventName, fn) { | |
if (this.events[eventName]) { |
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public string GetVirtualPath(VirtualPathContext context) | |
{ | |
foreach (var matcherParameter in _matcher.Template.Parameters) | |
{ | |
context.Values.Remove(matcherParameter.Name); // make sure none of the domain-placeholders are appended as query string parameters | |
} | |
return _innerRoute.GetVirtualPath(context); | |
} |
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require.config({ | |
baseUrl: '/backbone-tests/', | |
paths: { | |
'jquery' : '/app/libs/jquery', | |
'underscore' : '/app/libs/underscore', | |
'backbone' : '/app/libs/backbone', | |
'mocha' : 'libs/mocha', | |
'chai' : 'libs/chai', | |
'chai-jquery' : 'libs/chai-jquery', | |
'models' : '/app/models' |
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#!/bin/bash | |
# store the current dir | |
CUR_DIR=$(pwd) | |
# Let the person running the script know what's going on. | |
echo "\n\033[1mPulling in latest changes for all repositories...\033[0m\n" | |
# Find all git repositories and update it to the master latest revision | |
for i in $(find . -name ".git" | cut -c 3-); do |