James Adams James-E-Adams

Boolean() or !! (double bang, double negation)?

What's the best way to answer the question "true or false?" in JavaScript

JavaScript does not bother you too much with types (at first), which is both a blessing and a cure. But we all know the Boolean type. Boolean variables can either be true or false. Yes or no.

Every value in JavaScript can be translated into a boolean, true or false. Values that translate to true are truthy, values that translate to false are falsy. Simple.

This is about two ways to make that translation.

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

[Isolating Differences Between Files][paper]

Advantage over Other Algorithms

The diff output is more specific:

[I]f a whole block of text is moved, then all of it, rather than just the beginning and end, is detected as changed.

>The algorithm described here avoids these difficulties. It detects differences that correspond very closely to our intuitive notion of difference.

	function hashify(hash, [key, value]) {
	hash[key] = value;
	return hash;
	}

	function eventId(event) {
	if (event.isRecurringEvent()) {
	return event.getId() + "-" + event.getStartTime().toISOString() + "-" + event.getEndTime();
	}

	@RunWith(Parameterized::class)
	class KotlinTest(val paramOne: Int, val paramTwo: String) {

	companion object {
	@JvmStatic
	@Parameterized.Parameters
	fun data() : Collection<Array<Any>> {
	return listOf(
	arrayOf(1, "I"), // First test: (paramOne = 1, paramTwo = "I")
	arrayOf(1999, "MCMXCIX") // Second test: (paramOne = 1999, paramTwo = "MCMXCIX")

	public RestApiResponse<bool> PutEnvelopesDocuments(string envelopeId, string documentId, string fullFileName, byte[] documentBytes)
	{
	RestRequest request = GetBaseRequest("envelopes/{envelopeId}/documents/{documentId}", Method.PUT);

	request.AddUrlSegment("envelopeId", envelopeId);
	request.AddUrlSegment("documentId", documentId);
	request.AddHeader("Content-Type", "application/pdf");
	request.AddHeader("Content-Disposition",
	string.Format("file; filename=\"{0}\"; documentid={1}; fileExtension=\"{2}\"",
	Path.GetFileNameWithoutExtension(fullFileName), documentId, Path.GetExtension(fullFileName)));

	#!/bin/bash

	#First create a repo
	mkdir A && cd A && git init && touch a.dev && touch a.prod && git add -A && git commit -m 'init A' && cd ../

	#Lets create another repo that will use A as submodule with sparse-checkout
	mkdir B && cd B && git init && touch b && git add -A && git commit -m 'init B'

	#Now we will clone A as submodule of B and will say that file/dir we only want to use in B
	git submodule add ../A/ A && cd A && git config core.sparsecheckout true && echo a.prod >> ../.git/modules/A/info/sparse-checkout && git read-tree -mu HEAD && cd ../ && git add -A && git commit -m 'add A as submodule/sparse-checkout' && cd ../