你的表单总报错？JS清空全空格的正则与split+join对决
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javascript澶嶅埗// 姝ｅ垯娲?鈫?蹇垁鏂╀贡楹?/span> let tel = "138 1234 5678"; tel.replace(/\s+/g, ''); // 0.05ms // split+join娲?鈫?杩傚洖鎴樻湳 tel.split(' ').join(''); // 0.12ms
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- 姝ｅ垯鏂规鑰楁椂锛?20ms
- split鏂规鑰楁椂锛?80ms
- 鍐呭瓨鍗犵敤宸細3.2MB vs 5.1MB
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javascript澶嶅埗// 姝ｅ垯鐜嬭€呯増锛堥€氭潃鎵€鏈夌┖鏍硷級 data.replace(/[\s\u00A0\u3000]/g, ''); // split闈掗摐鐗堬紙鍙兘澶勭悊鏅€氱┖鏍硷級 data.split(' ').join('').split('\t').join('');
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| 绌烘牸绫诲瀷 | 姝ｅ垯鏂规 | split鏂规 |
|---|---|---|
| 鏅€氱┖鏍?/td> | 鉁?/td> | 鉁?/td> |
| 聽 | 鉁?/td> | 鉂?/td> |
| 鍏ㄨ绌烘牸 | 鉁?/td> | 鉂?/td> |
| 闆跺绌烘牸 | 鉁?/td> | 鉂?/td> |
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鈥?strong>鈥嬫€ц兘鏋侀檺娴嬭瘯鈥?/strong>鈥嬶紙澶勭悊10KB鏂囨湰锛夛細
| 鏂规 | 瀹夊崜锛坢s锛?/th> | iOS锛坢s锛?/th> | 鍐呭瓨娉㈠姩 |
|---|---|---|---|
| 姝ｅ垯 | 8.2 | 7.8 | +0.3MB |
| split+join | 15.4 | 13.2 | +1.2MB |
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javascript澶嶅埗// 棰勭紪璇戞鍒欐彁閫?0% const spaceRegex = /\s+/g; function optimizeClear(str) { return str.replace(spaceRegex, ''); }
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馃弳 缁堟瀬瀵瑰喅琛紙2024瀹炴祴鏁版嵁锛?/h3>
| 瀵规瘮缁村害 | 姝ｅ垯鏂规 | split+join鏂规 |
|---|---|---|
| 鈥?strong>鈥嬫墽琛岄€熷害鈥?/strong>鈥?/td> | 1涓囨/420ms | 1涓囨/780ms |
| 鈥?strong>鈥嬪唴瀛樺崰鐢ㄢ€?/strong>鈥?/td> | 绋冲畾鍦ㄥ熀鍑嗗€?/td> | 姣忔鎿嶄綔+0.2MB |
| 鈥?strong>鈥嬬壒娈婄┖鏍尖€?/strong>鈥?/td> | 閫氭潃鎵€鏈塙nicode绌烘牸 | 鍙兘澶勭悊鏅€氱┖鏍?/td> |
| 鈥?strong>鈥嬩唬鐮佸彲璇绘€р€?/strong>鈥?/td> | 闇€瑕佹鍒欏熀纭€ | 灏忕櫧鍙嬪ソ |
| 鈥?strong>鈥嬭澶囧吋瀹规€р€?/strong>鈥?/td> | 瀹夊崜iOS閫氬悆 | 鍗庝负鑰佹満鍨嬫參40% |
馃挕 璇寸偣鏁欑涔﹂噷娌℃湁鐨?/h3>
- 鈥?strong>鈥嬫鍒欑殑闅愯棌浼樺娍鈥?/strong>鈥嬶細鍦–hrome V8寮曟搸涓紝/\s+/g浼氳缂栬瘧鎴愭満鍣ㄧ爜锛岃€宻plit闇€瑕佸垱寤轰复鏃舵暟缁?/li>
- 鈥?strong>鈥媠plit鐨勯€嗚鍦烘櫙鈥?/strong>鈥嬶細瑕佸鐞嗙壒瀹氬瓧绗︼紙姣斿鍙垹绌烘牸涓嶅垹鎹㈣绗︼級鏃跺弽鑰屾洿鐏垫椿
- 鈥?strong>鈥嬫渶鏂拌秼鍔库€?/strong>鈥嬶細Deno鐜閲宻plit+join姣旀鍒欏揩15%锛屼絾Node.js杩樻槸姝ｅ垯绉扮帇
涓婁釜鏈堥噸鏋勬棫椤圭洰鏃跺彂鐜颁釜楠氭搷浣滐細鐢ㄦ鍒欐竻绌烘牸+Web Worker鍚庡彴澶勭悊锛岃琛ㄥ崟鎻愪氦閫熷害椋炶捣锛佷唬鐮佺墖娈佃嚜鍙栵細
javascript澶嶅埗// 涓荤嚎绋?/span> input.addEventListener('input', () => { worker.postMessage(input.value); }); // Web Worker worker.onmessage = (e) => { const cleaned = e.data.replace(/\s+/g, ''); // 鏇存柊UI... };
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