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  1. Remainder (%) - JavaScript | MDN

    The remainder (%) operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend.... Try it Syntax js x % y Description The % operator...Remainder with positive dividend js 13 % 5; // 3 1 % -2; // 1 1 %...

    developer.mozilla.org/en-US/docs/Web/JavaScript...
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  2. HTMLElement: command event - Web APIs | MDN

    Learn about the command event, including its type and syntax, code examples, specifications, and browser compatibility.... js addEventListener("command", (event)...Event . Examples Basic example js const popover = document.get...

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  3. typeof - JavaScript | MDN

    The typeof operator returns a string indicating the type of the operand's value.... Try it Syntax js typeof operand Parameters operand...listed. Examples Basic usage js // Numbers typeof 37 === "number";...

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  4. Closures - JavaScript | MDN

    A closure is the combination of a function bundled together (enclosed) with references to its surrounding state (the lexical environment). In other words, a closure gives a function access to its outer scope. In JavaScript, closures are created every time a function is created, at function creation time....Consider the following example code: js function init() { var name =...braces do not create scopes: js if (Math.random() > 0.5) { var...

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  5. constructor - JavaScript | MDN

    The constructor method is a special method of a class for creating and initializing an object instance of that class.... Try it Syntax js constructor() { /* … */ } co...called on an instantiated object. js class Person { constructor(name)...

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  6. Async scripts for asm.js - Game development | MDN

    Every medium or large game should compile asm.Js code as part of an async script to give the browser the maximum flexibility to optimize the compilation process. In Gecko, async compilation allows the JavaScript engine to compile the asm.Js off the main thread when the game is loading and cache the generated machine code so that the game doesn't need to be compiled on subsequent loads (starting in Firefox 28). To see the difference, toggle javascript.options.parallel_parsing in about:config....js code as part of an async script...JavaScript engine to compile the asm.js off the main thread when the...

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  7. SyntaxError: string literal contains an unescap...

    The JavaScript error "string literal contains an unescaped line break" occurs when there is an unterminated string literal somewhere. String literals must be enclosed by single (') or double (") quotes and cannot split across multiple lines....lines like this in JavaScript: js const longString = "This is a...operator variant looks like this: js const longString = "This is a...

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  8. Comma operator (,) - JavaScript | MDN

    The comma (,) operator evaluates each of its operands (from left to right) and returns the value of the last operand. This is commonly used to provide multiple updaters to a for loop's afterthought.... Try it Syntax js expr1, expr2, expr3/* , … */...comma is not the comma operator: js const a = 1, b = 2; It is different...

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  9. TypeError: "x" is (not) "y" - JavaScript | MDN

    The JavaScript exception "x is (not) y" occurs when there was an unexpected type. Oftentimes, unexpected undefined or null values.... js const foo = undefined; foo.substring(1);...might require a specific type. js const foo = {}; Symbol.keyFor(foo);...

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  10. hochan222 (hochan Lee) · GitHub

    "Done is better than perfect". hochan222 has 112 repositories available. Follow their code on GitHub....Conference 1 Day 1 Medium Mail JS Piscine solved.ac github stats...42js/ you-dont-know-js-yet 42js/you-dont-know-js-yet Public You Don't...

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