Sebastien Chapuis sebastiencs

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What forces layout / reflow

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.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Hyperlinks (a.k.a. HTML-like anchors) in terminal emulators

[ Update 2020-05-31: I won't be maintaining this page or responding to comments anymore (except for perhaps a few exceptional occasions). ]

Most of the terminal emulators auto-detect when a URL appears onscreen and allow to conveniently open them (e.g. via Ctrl+click or Cmd+click, or the right click menu).

It was, however, not possible until now for arbitrary text to point to URLs, just as on webpages.

Achieving warp speed with Rust

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

There are always 24 hours in a day.
February is always 28 days long.
Any 24-hour period will always begin and end in the same day (or week, or month).

	#include <clang-c/Index.h>
	#include <cstdlib>
	#include <iostream>

	/*
	* Compile with:
	* g++ complete.cc -o complete -lclang -L/usr/lib/llvm
	* Run with:
	* LIBCLANG_TIMING=1 ./complete file.cc line column [clang args...]
	*/

	// Just before switching jobs:
	// Add one of these.
	// Preferably into the same commit where you do a large merge.
	//
	// This started as a tweet with a joke of "C++ pro-tip: #define private public",
	// and then it quickly escalated into more and more evil suggestions.
	// I've tried to capture interesting suggestions here.
	//
	// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
	// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

	#!/usr/bin/env bash

	# grab PAM-provided auth token
	read token

	# grab our user, $USER isn't always set
	USER="$(id -un)"

	# switch to PAM_USER if passed, buffer return value
	$([[ "$PAM_USER" != "$USER" ]] && echo su - "$PAM_USER" -s) /usr/local/bin/gpg-preset-passphrase <<< "$token"

	--log_gc (Log heap samples on garbage collection for the hp2ps tool.)
	type: bool default: false
	--expose_gc (expose gc extension)
	type: bool default: false
	--max_new_space_size (max size of the new generation (in kBytes))
	type: int default: 0
	--max_old_space_size (max size of the old generation (in Mbytes))
	type: int default: 0
	--max_executable_size (max size of executable memory (in Mbytes))
	type: int default: 0

	-- Génération automatique de classements aléatoires en production, pour les FNS
	-- ===================================
	FUNCTION gen_class_aiea_v1_relatif_grp( o_g_ea_cod_ins IN varchar2, o_g_ti_cod IN number, o_c_gp_cod IN number, o_g_tg_cod IN number, iogin IN varchar2, type_login IN number, mode_dev IN number, confirm IN number, saio IN number, nip IN varchar2, indic IN number, mess_err out varchar2, mess_aff out varchar2)
	RETURN number IS
	retour number;
	X varchar2(2);
	dummy number;
	dummy2 number;

	l_c_gp_fIg_seI c_grp.c_gp_flg_sel%type;