Làm cách nào để bạn thêm các ký tự đặc biệt vào javascript?
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Show \x22""%22%22 quotation mark &\x26&&%26& ampersand <"0"1"1"3"3 less-than sign >"5"6"6"8"8 greater-than sign "0"1"1"3"4 non-breaking space ¡"5"6"6"8"9 inverted exclamation mark ¢%220%221%221%223%224 cent sign £%225%226%226%228%229 pound sign ¤%220%221%221%223%224 currency sign ¥%225%226%226%228%229 yen sign = yuan sign ¦\x260\x261\x261\x263\x264 broken vertical bar §\x265\x266\x266\x268\x269 section sign ¨&0&1&1&3&4 diaeresis = spacing diaeresis ©&5&6&6&8&9 copyright sign ª&0&1&1&3&4 feminine ordinal indicator «&5&6&6&8&9 left-pointing double angle quotation mark = left pointing guillemet ¬%260%261%261%263%264 not sign %265%266%266%268%269 soft hyphen = discretionary hyphen ®&0&1&1&3&4 registered sign = registered trademark sign ¯&5&6&6&8&9 macron = spacing macron = overline = APL overbar °"00"01"01"03"04 degree sign ±"05"06"06"08"09 plus-minus sign = plus-or-minus sign ²"10"11"11"13"14 superscript two = superscript digit two = squared ³"15"16"16"18"19 superscript three = superscript digit three = cubed ´"20"21"21"23"24 acute accent = spacing acute µ"25"26"26"28"29 micro sign ¶"30"31"31"33"34 pilcrow sign = paragraph sign ·"35"36"36"38"39 middle dot = Georgian comma = Greek middle dot ¸"40"41"41"43"44 cedilla = spacing cedilla ¹"45"46"46"48"49 superscript one = superscript digit one º"50"51"51"53"54 masculine ordinal indicator »"55"56"56"58"59 right-pointing double angle quotation mark = right pointing guillemet ¼"60"61"61"63"64 vulgar fraction one quarter = fraction one quarter ½"65"66"66"68"69 vulgar fraction one half = fraction one half ¾"70"71"71"73"74 vulgar fraction three quarters = fraction three quarters ¿"75"76"76"78"79 inverted question mark = turned question mark ×"80"81"81"83"84 multiplication sign ÷"85"86"86"88"89 division sign ƒ"90"91"91"93"94 latin small f with hook = function = florin ˆ"95"96"96"98"99 modifier letter circumflex accent ˜"00"01"01"03"04 small tilde "05"06"06"08"09 en space "10"11"11"13"14 em space "15"16"16"18"19 thin space "20"21"21"23"24 zero width non-joiner "25"26"26"28"29 zero width joiner "30"31"31"33"34 left-to-right mark "35"36"36"38"39 right-to-left mark –"40"41"41"43"44 en dash —"45"46"46"48"49 em dash ‘"50"51"51"53"54 left single quotation mark ’"55"56"56"58"59 right single quotation mark ‚"60"61"61"63"64 single low-9 quotation mark “"65"66"66"68"69 left double quotation mark ”"70"71"71"73"74 right double quotation mark „"75"76"76"78"79 double low-9 quotation mark †"80"81"81"83"84 dagger ‡"85"86"86"88"89 double dagger •"90"91"91"93"94 bullet = black small circle …"95"96"96"98"99 horizontal ellipsis = three dot leader ‰%2200%2201%2201%2203%2204 per mille sign ′%2205%2206%2206%2208%2209 prime = minutes = feet ″%2210%2211%2211%2213%2214 double prime = seconds = inches ‹%2215%2216%2216%2218%2219 single left-pointing angle quotation mark ›%2220%2221%2221%2223%2224 single right-pointing angle quotation mark ‾%2225%2226%2226%2228%2229 overline = spacing overscore ⁄%2230%2231%2231%2233%2234 fraction slash €%2235%2236%2236%2238%2239 euro sign ℑ%2240%2241%2241%2243%2244 blackletter capital I = imaginary part ℓ%2245%2246%2247%2248 script small L №%2249%2250%2251%2252 numero sign ℘%2253%2254%2254%2256%2257 script capital P = power set = Weierstrass p ℜ%2258%2259%2259%2261%2262 blackletter capital R = real part symbol ™%2263%2264%2264%2266%2267 trademark sign ℵ%2268%2269%2269%2271%2272 alef symbol = first transfinite cardinal ←%2273%2274%2274%2276%2277 leftwards arrow ↑%2278%2279%2279%2281%2282 upwards arrow →%2283%2284%2284%2286%2287 rightwards arrow ↓%2288%2289%2289%2291%2292 downwards arrow ↔%2293%2294%2294%2296%2297 left right arrow ↵%2298%2299%2299%2201%2202 downwards arrow with corner leftwards = carriage return ⇐%2203%2204%2204%2206%2207 leftwards double arrow ⇑%2208%2209%2209%2211%2212 upwards double arrow ⇒%2213%2214%2214%2216%2217 rightwards double arrow ⇓%2218%2219%2219%2221%2222 downwards double arrow ⇔%2223%2224%2224%2226%2227 left right double arrow ∀%2228%2229%2229%2231%2232 for all ∂%2233%2234%2234%2236%2237 partial differential ∃%2238%2239%2239%2241%2242 there exists ∅%2243%2244%2244%2246%2247 empty set = null set = diameter ∇%2248%2249%2249%2251%2252 nabla = backward difference ∈%2253%2254%2254%2256%2257 element of ∉%2258%2259%2259%2261%2262 not an element of ∋%2263%2264%2264%2266%2267 contains as member ∏%2268%2269%2269%2271%2272 n-ary product = product sign ∑%2273%2274%2274%2276%2277 n-ary sumation −%2278%2279%2279%2281%2282 minus sign ∗%2283%2284%2284%2286%2287 asterisk operator √%2288%2289%2289%2291%2292 square root = radical sign ∝%2293%2294%2294%2296%2297 proportional to ∞%2298%2299%2299\x2601\x2602 infinity ∠\x2603\x2604\x2604\x2606\x2607 angle ∧\x2608\x2609\x2609\x2611\x2612 logical and = wedge ∨\x2613\x2614\x2614\x2616\x2617 logical or = vee ∩\x2618\x2619\x2619\x2621\x2622 intersection = cap ∪\x2623\x2624\x2624\x2626\x2627 union = cup ∫\x2628\x2629\x2629\x2631\x2632 integral ∴\x2633\x2634\x2634\x2636\x2637 therefore ∼\x2638\x2639\x2639\x2641\x2642 tilde operator = varies with = similar to ≅\x2643\x2644\x2644\x2646\x2647 approximately equal to ≈\x2648\x2649\x2649\x2651\x2652 almost equal to = asymptotic to ≠\x2653\x2654\x2654\x2656\x2657 not equal to ≡\x2658\x2659\x2659\x2661\x2662 identical to ≤\x2663\x2664\x2664\x2666\x2667 less-than or equal to ≥\x2668\x2669\x2669\x2671\x2672 greater-than or equal to ⊂\x2673\x2674\x2674\x2676\x2677 subset of ⊃\x2678\x2679\x2679\x2681\x2682 superset of ⊄\x2683\x2684\x2684\x2686\x2687 not a subset of ⊆\x2688\x2689\x2689\x2691\x2692 subset of or equal to ⊇\x2693\x2694\x2694\x2696\x2697 superset of or equal to ⊕\x2698\x2699\x2699&01&02 circled plus = direct sum ⊗&03&04&04&06&07 circled times = vector product ⊥&08&09&09&11&12 up tack = orthogonal to = perpendicular ⋅&13&14&14&16&17 dot operator ⌈&18&19&19&21&22 left ceiling = apl upstile ⌉&23&24&24&26&27 right ceiling ⌊&28&29&29&31&32 left floor = apl downstile ⌋&33&34&34&36&37 right floor ⟨&38&39&40&41&42 left-pointing angle bracket = bra ⟩&43&44&45&46&47 right-pointing angle bracket = ket ◊&48&49&49&51&52 lozenge ♠&53&54&54&56&57 black spade suit ♣&58&59&59&61&62 black club suit = shamrock ♥&63&64&64&66&67 black heart suit = valentine ♦&68&69&69&71&72 black diamond suit
Làm cách nào để thêm biểu tượng vào văn bản trong JavaScript?Trong JavaScript, bạn có thể thêm các ký tự đặc biệt vào chuỗi văn bản bằng cách sử dụng dấu gạch chéo ngược .
Làm cách nào để viết các ký hiệu trong JavaScript?Để tạo một Symbol nguyên thủy mới, bạn viết Symbol() với một chuỗi tùy chọn như mô tả của nó. . const sym1 = Biểu tượng(); . . Biểu tượng ("foo") === Biểu tượng ("foo"); . . const sym = Biểu tượng mới(); Làm cách nào để in các ký tự đặc biệt trong JavaScript?Javascript sử dụng '\' (dấu gạch chéo ngược) phía trước làm ký tự thoát. Để in dấu ngoặc kép, sử dụng các ký tự thoát, chúng tôi có hai tùy chọn. Dành cho dấu nháy đơn. \' (dấu gạch chéo ngược theo sau bởi dấu nháy đơn) Dành cho dấu nháy kép. \” (dấu gạch chéo ngược theo sau bởi dấu ngoặc kép)
Làm cách nào để đọc các ký tự đặc biệt trong JavaScript?Tất cả chúng đều bắt đầu bằng ký tự gạch chéo ngược (\) và thường được gọi là ký tự thoát. Các ký tự thoát sau đây được cho phép trong JavaScript.
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