Think of useRef as a useState that does not trigger a re-rendering of our component.

Explanation

In depth

The Analytics JavaScript Tag When a JavaScript-enabled web browser loads a page with the Analytics tag (ga.js or analytics.js), it does two things asynchronously: load and process the Analytics function queue and request the Analytics JavaScript. The function queue is a JavaScript array where the different Analytics configuration and collection functions are pushed. These functions, which are set by the site owner when implementing Analytics can include functions like specifying the Analytics account number and actually sending page view data to the Analytics Collection Network for processing. When the Analytics JavaScript runs a function from the function queue that triggers data to be sent to the Analytics Collection Network (this function is typically ga('send', 'pageview') in the analytics.js JavaScript library and _trackPageview in the ga.js library), it sends the data as URL parameters attached to an HTTP request for http://www.google-analytics.com/_utm.gif (for ga.js) and http://www.google-analytics.com/collect (for analytics.js). If the anonymization function has been called prior to the page tracking function, an additional parameter is added to the pixel request. The IP anonymization parameter looks like this: &aip=1 The Analytics Collection Network The Analytics Collection Network is the set of servers that provide two main services: the serving of ga.js and analytics.js (the Analytics JavaScript) and the collection of data sent via requests for _utm.gif and /collect. When a request for ga.js, analytics.js, _utm.gif, or /collect arrives, it includes additional information in the HTTP request header (i.e. the type of browser being used) and the TCP/IP header (i.e. the IP address of the requester). As soon as a request for _utm.gif arrives, it is held in memory for anonymization. If the &aip=1 parameter is found in the request URL (as it would have been placed by the Analytics JavaScript after processing the anonymization function in ga.js or analytics.js ), then the last octet of the user IP address is set to zero while still in memory. For example, an IP address of 12.214.31.144 would be changed to 12.214.31.0. (If the IP address is an IPv6 address, the last 80 of the 128 bits are set to zero.) Only after this anonymization process is the request written to disk for processing. If the IP anonymization method is used, then at no time is the full IP address written to disk as all anonymization happens in memory nearly instantaneously after the request has been received.

Cross-channel conversion paths See the big picture. Understand the value of upper funnel ad clicks in multi-click, cross-channel journeys.

If a user clicks on that button, the onclick script will not execute. This is because the script did not immediately execute and code not interpreted until the click event occurs is not considered part of the content script, so the CSP of the page (not of the extension) restricts its behavior. And since that CSP does not specify unsafe-inline, the inline event handler is blocked.

This topic is not a support question

whose personal data you collect and process as “controller” (that is the word that GDPR uses for whoever determines the purposes and means of the processing of personal data).

If you’re selling products and keep record of users’ choices for marketing purposes, dividing them into meaningful categories, such as by age, gender, geographical origin etc., you’re profiling them.

English tends to build new compound nouns by simply writing them as separate words with a blank. Once the compound is established (and the original parts somewhat "forgotten"), it's often written as one word or hyphenated. (Examples: shoelaces, aircraft...)

A website (also written as web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server

In math, idempotence describes only unary functions that you can call on their own output. Math-idempotence is, “If you take the absolute value of a number, and then you take the absolute value of that, the result doesn’t change on the second (or subsequent) operations.” Math.abs is math-idempotent. Math-idempotence only applies to functions of one parameter where the parameter type and return type are the same. Not so useful in programming.

Since the authenticity token is stored in the session, the client cannot know its value. This prevents people from submitting forms to a Rails app without viewing the form within that app itself. Imagine that you are using service A, you logged into the service and everything is ok. Now imagine that you went to use service B, and you saw a picture you like, and pressed on the picture to view a larger size of it. Now, if some evil code was there at service B, it might send a request to service A (which you are logged into), and ask to delete your account, by sending a request to http://serviceA.com/close_account. This is what is known as CSRF (Cross Site Request Forgery). If service A is using authenticity tokens, this attack vector is no longer applicable, since the request from service B would not contain the correct authenticity token, and will not be allowed to continue.

The process of collecting and storing user consent from a technical perspective

First-party cookies are the lifeblood of every website, enabling businesses to remember key pieces of information about users and to collect analytics data. Third-party cookies are the bread and butter of AdTech, allowing publishers to monetize their websites, and brands to run advertising and marketing campaigns.

They are in place to prevent brute forcing a password. If you had to complete these every time you login, a person has to be there to answer it. This makes it so you can’t leave a guessing software to break your password. So, in short, it's for your account’s safety.

disinformation is a subset of misinformation (that is, all disinformation is misinformation

The visitors of that blog post will get third-party non-essential cookies unless they previously set their browser to block cookies.

the feature was dropped to “lack of use.”

It's a good practice to create respond_to_missing? if you are overriding method_missing. That way, the class will tell you the method you are calling exists, even though it's not explicitly declared.

Europium is used in the printing of euro banknotes. It glows red under UV light, and forgeries can be detected by the lack of this red glow.

Low-energy light bulbs contain a little europium to give a more natural light, by balancing the blue (cold) light with a little red (warm) light.

So if you create one backup per night, for example with a cronjob, then this retention policy gives you 512 days of retention. This is useful but this can require to much disk space, that is why we have included a non-linear distribution policy. In short, we keep only the oldest backup in the range 257-512, and also in the range 129-256, and so on. This exponential distribution in time of the backups retains more backups in the short term and less in the long term; it keeps only 10 or 11 backups but spans a retention of 257-512 days.

Neutrino only babel-compiles first party source (the JSX -> JS transformation is handled by a babel plugin). It does this because even when using the module entry in package.json, it's expected that the provided file (and it's imports) still be JS and not in some other format - ie: the only difference from the content in main should be that it can use modules syntax (that is import and export rather than require etc).

A UMD build will let people use your module via a global variable by dropping it into a <script> tag - this makes it easier to try without any build tooling in an HTML file, and in tools like JS Bin and CodePen.

Oh, is it like Object.assign() then? Almost like Object.assign({}, divElement, {newProp: 'newProp'})?

React.cloneElement() allows us to clone a runtime element (not the class), and apply an enhancement to it.

The terms “controlled” and “uncontrolled” usually refer to form inputs, but they can also describe where any component’s data lives. Data passed in as props can be thought of as controlled (because the parent component controls that data). Data that exists only in internal state can be thought of as uncontrolled (because the parent can’t directly change it).

well explained article

Rack middleware is more than "a way to filter a request and response" - it's an implementation of the pipeline design pattern for web servers using Rack. It very cleanly separates out the different stages of processing a request - separation of concerns being a key goal of all well designed software products.

It would be safer to just register the JS entrypoints and automatically add CSS packs if there are any required by that JS. Webpacker does this already. Check your webpacker.yml and ensure that extract_css is false. This will prevent webpacker from separating the 2 files.

You probably have extract_css: true in your webpacker.yml. This removes import '../scss/index'; and generates the equivalent style sheet. You do need to add stylesheet_pack_tag yourself.

When you do import '../src/application.css', you're telling webpack include application.css in the build. This does not mean it's going to be compiled into your javascript, only that webpack now knows that you want to compile this file. How that file compilation is handled is depending on how your loaders (css-loader, sass-loader, file-loader, etc.. ) are configured.

P can't be assigned {}, since the Generic Type P can be a more defined (or restricted) type.

React is hanging on to a reference to previous functions because memoization typically means that we keep copies of old values to return in the event we get the same dependencies as given previously

The useRef creates an "instance variable" in functional component.

business incubator

Reagan years

Lithium-ion batteries are key components for most consumer electronics, from cellphones and laptops to electric cars.

Due to its electrical conductivity, copper is used in electronics, cars, and wires. This makes copper critical for highly developed countries.

Cobalt's primary ores are cobaltite (CoAsS) and erythrite (Co3(AsO4)2). Cobalt is usually recovered as a byproduct of mining and refining nickel, silver, lead, copper and iron.

When we burn these fossil fuels, the carbon combines with oxygen to make carbon dioxide. This extra carbon dioxide (and other GHGs like methane) traps more and more heat in our atmosphere.

Theorem 4.3.

zN(c;Kc)

gcinti N(cint;Kcint)for eachi;j

Explaining Deep Learning Models - A Bayesian Non-parametric Approach

Local Explanation Methods for Deep Neural Networks Lack Sensitivity to Parameter Values

Maximum number of hours of work is fixed  Extra payment over and above the fixed wage for Overtime.  One day off for every seven days of work

vending zone” means an area or a place or a location designated as such bythe local authority, on the recommendations of the Town Vending Committee, for thespecific use by street vendors for street vending and includes footpath, side walk,pavement, embankment, portions of a street, waiting area for public or any such placeconsidered suitable for vending activities and providing services to the general public.

No street vendor shall be evicted or, as the case may be, relocated till the surveyspecified under sub-section (1) has been completed and the certificate of vending is issuedto all street vendors.

No street vendor shall be relocated or evicted by the local authority from the placespecified in the certificate of vending unless he has been given thirty days’ notice for thesame in such manner as may be specified in the scheme.

The appropriate Government may constitute one or more committees consistingof a Chairperson who has been a civil judge or a judicial magistrate and two other professionalshaving such experience as may be prescribed for the purpose of deciding the applicationsreceived under sub-section (2)

Notwithstanding anything contained in any other law for the time being in force,no street vendor who carries on the street vending activities in accordance with the termsand conditions of his certificate of vending shall be prevented from exercising such rights byany person or police or any other authority exercising powers under any other law for thetime being in force

Each Town Vending Committee shall consist of

The Town Vending Committee shall, within such period and in such manner asmay be specified in the scheme, conduct a survey of all existing street vendors, within thearea under its jursidiction, and subsequent survey shall be carried out at least once in everyfive years.

t extends to the whole of India except the State of Jammu and Kashmir.

It shall come into force on such date as the Central Government may, by notificationin the Official Gazette, appoint; and different dates may be appointed for different States andany reference in any provision to the commencement of this Act shall be construed inrelation to any State as a reference to the coming into force of that provision in that State.

This Act may be called the Street Vendors (Protection of Livelihood and Regulationof Street Vending) Act, 2014.

Nearly everyone would agree that deceiving research participants and then subjecting them to physical harm would not be justified by filling a small gap in the research literature.

Every so often we find ourselves talking about what we want for their future and what they might want for themselves, asking ourselves, in so many words: how badly do we want them to go to Harvard? I don’t know if either of my children will have the inclination or the résumé to do so; my position, as a parent, is that Harvard would be lucky to have them

There are a number of possible explanations for this unanticipated result. First, union members may have a higher level of dissatisfaction with the organisation and management processes (Freeman and Medoff, 1984: 21; Bryson et al., 2004), including communications and participative arrangements, and therefore perceive less favourably their degree of influence within the organisation (Kleinman, 2000: 403–404) or the degree of managerial responsiveness (Bryson et al., 2006). Bryson (2004) found that union members had a higher level of job dissatisfaction than non-union workers but that after an extensive array of control variables were included, no significant negative relationship was found. This finding, they suggested, may well be due to a selection bias on the part of employees. Employees who had higher aspirations for their working life may be more likely to join a union. This proposition resonates well in the case of PSR, where some 63.8 per cent of unionised employees indicated that a major reason for joining the union was because they wanted to have a say in matters affecting their working life. Unions themselves may also contribute to this dissatisfaction by raising employee expectations that they are unable to meet (see also discussion on ‘consciousness raising’ in Guest and Conway, 2004: 115–116) and by providing their members with considerable information about problems within the organisation and the problems they are encountering with management. This is likely to be part of the explanation for the findings of this research as at the time of the survey, PSR management were keen to introduce a performance-related pay scheme which had led to an active campaign of opposition by the union.A second explanation is that union members may have higher expectations of voice. Employees join unions for a variety of reasons (Peetz, 1998), but overall, they expect unions to make a difference to their working lives. As Bryson and Freeman (2007: 84) found, ‘unionised workers reported more problems with management’ than non-union workers. In the case of PSR, the major reasons for employees joining the union were a belief in unions, wanting to have a say in things that affect their working life and a belief that unions generate better wages and conditions. Clearly, these union members had high expectations concerning voice. Yet, it was also the case that these expectations were not being met. Improved wages and working conditions were becoming harder to achieve as the enterprise bargaining system, with its emphasis on productivity improvements, had led to trade-offs involving redundancies, a decline in wage relativities with the private sector, and the possibility of a new performance-based pay scheme being introduced.A third explanation is that the overall focus within PSR at the time of the research had shifted from curiosity-led to commercially-driven research with an emphasis on productivity and efficiency. For employees of PSR, most of who were accustomed to the more protected working environment of the public sector, this meant that external factors were now driving research, and the scientific arguments used in the past for justifying research projects were becoming less important. In this environment, the value of union membership was becoming more marginal as union members had less protection than that of the past in the case of redundancies and adverse performance appraisals. In addition, other benefits of union membership such as access to grievance procedures were available to all employees regardless of their union status. It may also have been the case that management's approach to reform, for example the introduction of a performance-based pay scheme that ran counter to the wishes of union members and past practices, may have led many unionists to believe they were being targeted. In this context, the tense state of the relationship between management and the union may have created a negative perception of collective union voice (Freeman and Medoff, 1984).

The key is know that the curse exists.  To be able to recognize the challenge before you.

directions with largest variances in ourmeasurement space contain the dynamics of interes

rotation and a stretch

how do we get from this data

our measurements might not even be 90o

non-parametric method

ball’s position in a three-dimensional space

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