Other need says if it is a need to find multiple elements or say all elements in document to match with the CSS selectors or query selectors then it will involve and make use of querySelectorAll() method for performing all the operations to find all elements in one go. Thus, it can b...
var imgs = document.querySelectorAll("img + p"); If you’re interested in an img element that has an empty alt attribute, you can use the following: var imgs = document.querySelectorAll('img[alt=""]'); If you’re only interested in img elements that don’t have an empty alt ...
querySelectorAll('.foo'); // good const nodes = Array.from(foo); // best const nodes = [...foo];4.5 Use Array.from for converting an array-like object to an array. const arrLike = { 0: 'foo', 1: 'bar', 2: 'baz', length: 3 }; // bad const arr = Array.prototype....
querySelectorAll('.foo'); const nodes = Array.from(foo);4.5 在数组方法的回调函数中使用renturn语句。如果函数只有一个语句就可以忽略不用8.2. eslint: array-callback-return // good [1, 2, 3].map((x) => { const y = x + 1; return x * y; }); // good 函数只有一个语句 [1, ...
<element_selector> is a selector (in terms of querySelectorAll) for the element on which the following JS components are called. <js_component1> and <js_component2> are the JS components being initialized on the element with the selector specified as <element_selector>. <js_component3>...
For example, here is how you can update the above showResults() function to handle multiple correct answers.function showResults() { const answerContainers = quizContainer.querySelectorAll('.answers'); let numCorrect = 0; myQuestions.forEach((currentQuestion, questionNumber) => { ...
const foo = document.querySelectorAll('.foo'); // good const nodes = Array.from(foo); // best const nodes = [...foo]; 4.5 Use Array.from for converting an array-like object to an array. const arrLike = { 0: 'foo', 1: 'bar', 2: 'baz', length: 3 }; // bad const ar...
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then(function (collections) { performance.mark("got collection"); var hub = element.querySelector("#featuredHub"); if (!hub) { return; } var hubSections = hub.winControl.sections, hubSection, collection, priority; jobOwnerToken = scheduler.createOwnerToken(); for (var i = 0; i < hub...
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