paulirish

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

mooman219

Benchmark                     (arg)  Mode  Samples  Score   Error  Units
o.s.MyBenchmark.baseline          1  avgt       50  5.346 ñ 0.033  ns/op
o.s.MyBenchmark.baseline        100  avgt       50  5.402 ñ 0.053  ns/op
o.s.MyBenchmark.baseline         10  avgt       50  5.409 ñ 0.067  ns/op
o.s.MyBenchmark.baseline       1000  avgt       50  5.409 ñ 0.057  ns/op
o.s.MyBenchmark.baseline          5  avgt       50  5.373 ñ 0.057  ns/op
o.s.MyBenchmark.mapTest           1  avgt       50  6.989 ñ 0.044  ns/op
o.s.MyBenchmark.mapTest         100  avgt       50  7.259 ñ 0.111  ns/op
o.s.MyBenchmark.mapTest          10  avgt       50  7.125 ñ 0.159  ns/op
o.s.MyBenchmark.mapTest        1000  avgt       50  7.674 ñ 0.048  ns/op

tleen

git checkout --orphan gh-pages

svenefftinge

@Active(ExternalizedProcessor)
annotation Externalized {}

class ExternalizedProcessor extends AbstractClassProcessor implements CodeGenerationParticipant<ClassDeclaration> {

  override doTransform(MutableClassDeclaration annotatedClass, extension TransformationContext context) {
    for (field : annotatedClass.declaredFields) {
      val initializer = field.initializerAsString
      val msgFormat = try {
        new MessageFormat(initializer)  

swankjesse

/*bin/mkdir /tmp/rip 2> /dev/null
javac -d /tmp/rip $0
java -cp /tmp/rip Rip "$@"
exit
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;
import java.util.regex.Matcher;

tbroyer

/*
 *    Copyright 2012 Thomas Broyer <[email protected]>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software

przemoc

#!/bin/bash
# SPDX-License-Identifier: MIT
 
## Copyright (C) 2009 Przemyslaw Pawelczyk <[email protected]>
##
## This script is licensed under the terms of the MIT license.
## https://opensource.org/licenses/MIT
#
# Lockable script boilerplate