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  1. unescape() - JavaScript | MDN

    The unescape() function computes a new string in which hexadecimal escape sequences are replaced with the characters that they represent. The escape sequences might be introduced by a function like escape().... Syntax js unescape(str) Parameters str...unescape() . Examples Using unescape() js unescape("abc123"); // "abc123"...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  2. SyntaxError: for-in loop head declarations may ...

    The JavaScript strict mode-only exception "for-in loop head declarations may not have initializers" occurs when the head of a for...in contains an initializer expression, such as for (var i = 0 in obj). This is not allowed in for-in loops in strict mode. In addition, lexical declarations with initializers like for (const i = 0 in obj) are not allowed outside strict mode either....example throws a SyntaxError : js const obj = { a: 1, b: 2, c:...the head of the for-in loop. js const obj = { a: 1, b: 2, c:...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  3. BarcodeDetector - Web APIs | MDN

    Learn about the BarcodeDetector interface, including its methods, code examples, specifications, and browser compatibility.... js // check compatibility if (!("BarcodeDetector"...logs the results to the console. js // check supported types BarcodeDetector...

    developer.mozilla.org/en-US/docs/Web/API/Barcod...
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  4. Bitwise AND (&) - JavaScript | MDN

    The bitwise AND (&) operator returns a number or BigInt whose binary representation has a 1 in each bit position for which the corresponding bits of both operands are 1.... Try it Syntax js x & y Description The & operator...instead. Examples Using bitwise AND js // 9 (00000000000000000000) //...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  5. Object.is() - JavaScript | MDN

    The Object.is() static method determines whether two values are the same value.... Try it Syntax js Object.is(value1, value2) Parameters...other. Examples Using Object.is() js // Case 1: Evaluation result...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  6. HTMLElement: dataset property - Web APIs | MDN

    Learn about the HTMLElement.dataset property, including its type, code examples, specifications, and browser compatibility....data-date-of-birth> Carina Anand </div> js const el = document.querySelector("#user");...= "1960-10-03"; // Result on JS: el.dataset.dateOfBirth === '1960-10-03'...

    developer.mozilla.org/en-US/docs/Web/API/HTMLEl...
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  7. ReadableStreamBYOBReader - Web APIs | MDN

    Learn about the ReadableStreamBYOBReader interface, including its constructor, properties, and methods, code examples, specifications, and browser compatibility.... js const reader = stream.getReader({...into the original array buffer. js readStream(reader); function...

    developer.mozilla.org/en-US/docs/Web/API/Readab...
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  8. Unicode character class escape: \p{...}, \P{......

    A unicode character class escape is a kind of character class escape that matches a set of characters specified by a Unicode property. It's only supported in Unicode-aware mode. When the v flag is enabled, it can also be used to match finite-length strings.... js // finding all the letters of...script and ε to the Greek script. js const mixedCharacters = "aεЛ";...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  9. sashasushko (Sasha Sushko) · GitHub

    Js-developer at @exness. Translator of @mdn. Ex-author of Js-courses at @htmlacademy. Ex front-end developer at @pixel-point, @cubedevinc, @csssr and @skbkontur - sashasushko...Sasha Sushko sashasushko Follow JS-developer at @exness . Translator...Translator of @mdn . Ex-author of JS-courses at @htmlacademy . Ex...

    github.com/sashasushko
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  10. shubhwebkul (Shubham Mehrotra) · GitHub

    Full-Stack Web Developer. shubhwebkul has 33 repositories available. Follow their code on GitHub....js project with cdn JavaScript JS JS Public JavaScript...

    github.com/shubhwebkul
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