Baseline Widely available *
TypeError
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TypeError
ã¯ä»¥ä¸ã®ãããªå ´åã«çºçãã¾ãã
TypeError()
æ°ãã TypeError
ãªãã¸ã§ã¯ããçæãã¾ãã
TypeError.prototype.message
ã¨ã©ã¼ã¡ãã»ã¼ã¸ã§ãã ECMA-262 ã«ãã㦠TypeError
ã¯èªèº«ã® message
ããããã£ãæä¾ããã¹ãã¨ããã¦ãã¾ããã SpiderMonkey ã§ã¯ Error.prototype.message
ãç¶æ¿ãã¦ãã¾ãã
TypeError.prototype.name
ã¨ã©ã¼åã§ãã Error
ããç¶æ¿ãã¦ãã¾ãã
TypeError.prototype.fileName
ãã®ã¨ã©ã¼ãçºçãããã¡ã¤ã«ã®ãã¹ã§ãã Error
ããç¶æ¿ãã¦ãã¾ãã
TypeError.prototype.lineNumber
ãã®ã¨ã©ã¼ãçºçãããã¡ã¤ã«å
ã®è¡çªå·ã§ãã Error
ããç¶æ¿ãã¦ãã¾ãã
TypeError.prototype.columnNumber
ãã®ã¨ã©ã¼ãçºçããè¡å
ã®æ¡çªå·ã§ãã Error
ããç¶æ¿ãã¦ãã¾ãã
TypeError.prototype.stack
ã¹ã¿ãã¯ãã¬ã¼ã¹ã§ãã Error
ããç¶æ¿ãã¦ãã¾ãã
try {
null.f();
} catch (e) {
console.log(e instanceof TypeError); // true
console.log(e.message); // "null has no properties"
console.log(e.name); // "TypeError"
console.log(e.fileName); // "Scratchpad/1"
console.log(e.lineNumber); // 2
console.log(e.columnNumber); // 2
console.log(e.stack); // "@Scratchpad/2:2:3\n"
}
TypeError ã®çæ
try {
throw new TypeError("Hello", "someFile.js", 10);
} catch (e) {
console.log(e instanceof TypeError); // true
console.log(e.message); // "Hello"
console.log(e.name); // "TypeError"
console.log(e.fileName); // "someFile.js"
console.log(e.lineNumber); // 10
console.log(e.columnNumber); // 0
console.log(e.stack); // "@Scratchpad/2:2:9\n"
}
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