JavaScript ã®ä¾å¤ "unexpected token" ã¯ããã¼ãµã¼ãæå®ã®ä½ç½®ã§èªèã§ãããã¼ã¯ã³ãèªã¿åãããããã°ã©ã ã®æ§é ãçè§£ã§ããªãå ´åã«çºçãã¾ããåç´ãªã¿ã¤ããã¹ããããã¾ããã
ã¨ã©ã¼ã¡ãã»ã¼ã¸SyntaxError: Unexpected token ';' (V8 ãã¼ã¹) SyntaxError: Unexpected identifier 'x' (V8 ãã¼ã¹) SyntaxError: Unexpected number (V8 ãã¼ã¹) SyntaxError: Unexpected string (V8 ãã¼ã¹) SyntaxError: Unexpected regular expression (V8 ãã¼ã¹) SyntaxError: Unexpected template string (V8 ãã¼ã¹) SyntaxError: unexpected token: identifier (Firefox) SyntaxError: expected expression, got "x" (Firefox) SyntaxError: expected property name, got "x" (Firefox) SyntaxError: expected target, got "x" (Firefox) SyntaxError: expected meta, got "x" (Firefox) SyntaxError: expected rest argument name, got "x" (Firefox) SyntaxError: expected closing parenthesis, got "x" (Firefox)ã¨ã©ã¼ã®ç¨®é¡ ã¨ã©ã¼ã®åå
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for (let i = 0; i < 5,; ++i) {
console.log(i);
}
// æªææã® SyntaxError: expected expression, got ';'
ã«ã³ããçç¥ããããä»ã®å¼ã追å ããããã¦ä¿®æ£ãã¦ãã ããã
for (let i = 0; i < 5; ++i) {
console.log(i);
}
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function round(n, upperBound, lowerBound) {
if (n > upperBound) || (n < lowerBound) { // Missing parentheses here!
throw new Error(`Number ${n} is more than ${upperBound} or less than ${lowerBound}`);
} else if (n < (upperBound + lowerBound) / 2) {
return lowerBound;
} else {
return upperBound;
}
} // SyntaxError: expected expression, got '||'
æåã¯æ¬å¼§ãæ£ããè¦ãã¾ããã ||
ãæ¬å¼§ã®å¤ã«ãããã¨ã«æ³¨æãã¦ãã ããã ||
ã®å¨å²ãæ¬å¼§ã§å²ãããã«ä¿®æ£ãã¦ãã ããã
function round(n, upperBound, lowerBound) {
if ((n > upperBound) || (n < lowerBound)) {
throw new Error(
`Number ${n} is more than ${upperBound} or less than ${lowerBound}`,
);
} else if (n < (upperBound + lowerBound) / 2) {
return lowerBound;
} else {
return upperBound;
}
}
ããã«ä¸ã®ææ³ã¨ã©ã¼ã«ããæå³ãæ··ä¹±ãã
ã¨ã©ã¼ã®åå ãã¨ã©ã¼ãçºçããå ´æã®ããè¿ãã«ããæ§é çãªåé¡ã§ããå ´åãããã¾ãã®ã§ãæ½å¨çãªã¨ã©ã¼ããªãããå ¨ä½ããã¾ãªã確èªããå¿ è¦ãããã¾ããä¾ãã°ããªãã¸ã§ã¯ãã®ã¡ã½ããã宣è¨ãããã¨ããã®ã«ãããããã£ã¨ãã¦å®£è¨ãã¦ãã¾ã£ãå ´åãªã©ã§ãã
const MyComponent = {
mounted: {
document.getElementById("app").classList.add("loaded");
}
}
document
ã®å¾ã« .
ãããã®ã¯äºæããªããã®ã§ãã JavaScriptã¯ã {}
ã颿°æ¬ä½ã§ã¯ãªããªãã¸ã§ã¯ããªãã©ã«ã¨ãã¦è§£æããããã :
ãæå¾
ãã¾ãã mounted
ã颿°ã¨ãã¦å®£è¨ãããã¨ã§ããã®åé¡ã¯è§£æ±ºãã¾ãã
const MyComponent = {
mounted() {
document.getElementById("app").classList.add("loaded");
}
}
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