?????? ????? ???? ?? requestAnimationFrame? ???? ???? ????? ??? ?????? ?? ??? ???? ?????. ??? ?? ?? ? 2D ???? ??, ?? ?? ? ?? ??, ? ???? ?? ?? ? ?? ?? ??? ?? ? ?? ?? ?? ??? ?? ? ????.
HTML5 Canvas? ?????? ???? JavaScript? ???? ??? ??? ??? ??? ????? ??? ?????? ???. ??? ??? ???? ???? ?? ?? ?? ?? ??? ?? ??? ???? ????. ????? ? ? ?? ??? ??? ????.
??? ?? ??
????? HTML ??? ??? ?????. JavaScript?? ??? ? ??? ID? ???? ??? ??? ?????.
?? ?? JavaScript?? ??? ????? ?????. 2D ??? ????? ???? ??, ??? ? ???? ?? ? ????.
const ??? = document.getElementById('myCanvas');const ctx = canvas.getContext('2d');
???? ?????? ?? requestAnimationFrame ??
setInterval ?? setTimeout? ???? ?? requestAnimationFrame()? ??????. ????? ?? ?? ??(?? 60fps)? ????? ? ???? ???? ?????? ?????.
???? ??? ??? ????? ???? ??? ????.
?? ?????() {//??? ???
ctx.clearRect(0, 0, canvas.width, canvas.height);
// ??? ??? ???? ??? ???????.
// ?: ??? ???? ?? ?????.
ctx.beginPath();
ctx.arc(x, y, ??, 0, Math.PI * 2);
ctx.fill();
x = 5; // ?? ????
requestAnimationFrame(?????);
}
?? ?? ??();
??? ?????? ??? ????? ??
???? ???? x , y , ?? , ?? ?? ?? ??? ??? ?????. ? ????? ??? ??? ???.
?? ??, ?? ?? ???? ??? ??????.
- ?? ? ?? ?? ??
- ? ????? ????? ??? ???? ??? ???????.
- ??? ????? ?? ? ??? ??????.
y = 50??? ??;
dx = 3??? ??;
dy = 2?? ??;
?? = 15? ?????.
?? ?????() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.beginPath();
ctx.arc(x, y, ??, 0, 2 * Math.PI);
ctx.fillStyle = '???';
ctx.fill();
x = dx;
y = ??;
if (x ?? > canvas.width || x - ?? if (y ?? > canvas.height || y - ??
requestAnimationFrame(?????);
}
?? ?? ??();
?? ?? ? ??? ?? ??
?????? ??? ????? ? ???? ?? ??? ??? ????? ?? ? ????.
?? ?? ?? ? ??? ?????.
canvas.addEventListener('??', () => {dx *= -1;
dy *= -1;
});
?? ?? ????? ??? ??? ?? ??? ???? ??? ???? ????????.
?? ??? ??? ???? ??? ???? ???? ?????? ??? ?? ????.
????? HTML5 Canvas ?????? ???? ???, ??????, ?? ??? ????. ??? ?? ??, ??? ??? ?? ??? ??? ?? ? ????. ??? ???? ???? ?? ???? ????? ?? ??? ?? ????.
? ??? HTML5 ???? ?????? ??? ??? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!
? AI ??
Undress AI Tool
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Undresser.AI Undress
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AI Clothes Remover
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Stock Market GPT
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SublimeText3 ??? ??
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SublimeText3 Mac ??
? ??? ?? ?? ?????(SublimeText3)
html5?? ??? ?? ??? (SSE)? ???? ??? ??????
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sseenablestreal time, ?? ??, ???-????? updatesviahttp; useeventsourceinjavaScriptToConnect, handlemessageswithonmessage, setServerResponsetypeToText/event-stream, formatdatawith "data :"? "\ n \ n", andoptionallycluventidsf
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useemantichtmlelementsLikeAndFornativeFocusableandKeyboardsUpport.EnsUreLogicalTabOderAndVisibleFocusIndicatorsviacs.fogrammanageFocusIndynamicContentLikEmodalSusingElement.focus (), TrappingFocusInsideAndingItaFterClosterA
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USETHEPATTERNATTRIBITINHINHTML5INPUTELENTEDATEAGAINSTAREGEX, SALSFORPASSWORDSREQUIRINGNUMBERS, ???, ??? ? MINIUMINGENGTH;
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PlaceHolderAttributeProvideAshorthintininpields.itappearsFaintlyAndDisAppeArsWhentyPingBegins, SupporedIntext, ???, Tel, Search, andTextAreeAlement.useIttOreaElements.useIttOSHOXAMples "exames@email.com", butnotasareplacementforlabels.labelsensureb
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USECSSSTROKE-DASHARRAYANDSTROKE-DASHOFFSETFORSIMPLEDRAWINIGANIMATIONS; 2.ApplyJavaScriptFordyNamicTriggersLikEloadorScroll; 3.employLibraries-gsApforPathmorphing; 4.OptimizeperFormanceByLimitingConcurrentAnimations.
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usePostMessAgeAporeCureIfRameCommunication.SendMessagesSpecificorigins, Andalwaysify theorigininmessageEventListEreserSecurity.
