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ÕâƪÎÄÕÂÖ÷ҪΪ´ó¼Ò½éÉÜÁËJavaScriptÖÐʹÓÃtoLocaleStringÊý×Ö¸ñʽ»¯´¦ÀíÏê½â£¬ÓÐÐèÒªµÄÅóÓÑ¿ÉÒÔ½è¼ø²Î¿¼Ï£¬Ï£ÍûÄܹ»ÓÐËù°ïÖú£¬×£´ó¼Ò¶à¶à½ø²½£¬ÔçÈÕÉýÖ°¼Óн
£¨¸£ÀûÍƼö£º¡¾ÌÚѶÔÆ¡¿·þÎñÆ÷×îÐÂÏÞʱÓŻݻ£¬ÔÆ·þÎñÆ÷1ºË2G½ö99Ôª/Äê¡¢2ºË4G½ö768Ôª/3Ä꣬Á¢¼´ÇÀ¹º>>>£º9i0i.cn/qcloud£©

£¨¸£ÀûÍƼö£ºÄ㻹ÔÚÔ­¼Û¹ºÂò°¢ÀïÔÆ·þÎñÆ÷£¿ÏÖÔÚ°¢ÀïÔÆ0.8ÕÛÏÞʱÇÀ¹º»î¶¯À´À²£¡4ºË8GÆóÒµÔÆ·þÎñÆ÷½ö2998Ôª/3Ä꣬Á¢¼´ÇÀ¹º>>>£º9i0i.cn/aliyun£©

toLocaleString ͵ÀÁС°ïÊÖ°¡~

ÏîÄ¿ÖиøÊý×Ö×ö¸ñʽ»¯´¦ÀíµÄÎÊÌâÌ«³£¼ûÀ²£¬ÌرðÊÇÉæ¼°µ½½ðÈÚÊý×ֵIJ¿·Ö£¬Õâ´Î¾ÍÊÇÓиöÐèÇóÐèÒª¸ø¸÷ÖÖ²»Í¬¸ñʽ£¬ÒªÊÇÒÔÇ°¿ÉÄܾÍɵɵµÄ×Ô¼ºÐ´º¯Êý´¦Àí£¬¿ÉÊÇÕâ´ÎÎÞÒâ¼ä¿´µ½»¹ÓÐÕâôºÃÓõĺ¯Êý£¬ÄÇÒÔÇ°Æñ²»ÊÇ´¿´¿µÄ´óÔ©ÖÖÁË-_-

Number.prototype.toLocaleString()

²ÎÊý£º numObj.toLocaleString([locales [, options]])¡£

µÚÒ»¸ö²ÎÊýÊÇÒ»¸ö¿ÉÑ¡²ÎÊý£¬ËõдÓïÑÔ´úÂ루BCP 47 language tag£¬ÀýÈç: cmn-Hans-CN£©µÄ×Ö·û´®»òÕßÕâЩ×Ö·û´®×é³ÉµÄÊý×飬һЩ Unicode À©Õ¹¼üÒ²ÊDZ»ÔÊÐíµÄ£¬ÏêÇé¼ûMDN£¬ÓÐÌØÊâµØÇø¸ñʽ¾ÍµÃ´«µ±µØµÄlocales¡£Ò»°ã´«Öµundefined£¬zh»òÕßen£¬¾Í¿ÉÒÔÓ¦¶Ô´ó¶àÊýÇé¿öÁË£¬Ä¬Èϲ»´«ÊÇundefiend¡£

1. Êý×Ö·Ö¸î³Éǧ·Öλ

ËüÖ±½Óµ÷Óã¬Ä¬ÈϾÍÊÇ·Ö¸îǧ·ÖλµÄ

var a = 123456.6789
a.toLocaleString() // 123,456.679,ĬÈϱ£Áô3λСÊý

Èç¹û²»Ïë±»·Ö¸ø³Éǧ·Ö룬ÔòÐèÒªÓõ½Ò»¸öÊôÐÔuseGrouping: false

var a = 123456.6789
a.toLocaleString(undefined, {useGrouping: false}) // 123456.6789

2. ±£Áô¼¸Î»Ð¡Êý

ÕâÀïÖ÷ÒªÓõ½ÁËÁ½¸öÊôÐÔ£º ±£Áô×îÉÙСÊýminimumFractionDigitsºÍ±£Áô×î¶àСÊýmaximumFractionDigits

var a = 123456.6789
a.toLocaleString(undefined, {minimumFractionDigits: 6}) //123,456.678900

ÕâÀï°Ñ×îÉÙ±£ÁôÊýÉèΪ6£¬ÄÇËü¾Í»á±£Áô6λСÊý

var a = 123456.6789
a.toLocaleString(undefined, {maximumFractionDigits: 2}) //123,456.68

Èç¹ûÏë±£ÁôÁ½Î»Ð¡ÊýµÄ»°£¬°Ñ±£Áô×î¶àСÊýÉèΪ2¾ÍÐС£

3. ʹÓõÄÕûÊýÊý×ÖµÄ×îСÊýÄ¿minimumIntegerDigits

 ·¶Î§ÊÇ1-21£¬Ä¬ÈÏ1

var a = 123456.6789
a.toLocaleString(undefined, {minimumIntegerDigits: 8}) //00,123,456.679

ʹÓõÄÕûÊýÊý×ÖµÄ×îСÊýÄ¿£¬²»×ã»á²¹Áã

4. ʹÓõÄÓÐЧÊý×ÖµÄ×îСÊýÄ¿minimumSignificantDigits

·¶Î§ÊÇ1-21£¬Ä¬ÈÏ1

var a = 123456.6789
a.toLocaleString(undefined, {minimumIntegerDigits: 8}) //00,123,456.679

5. ʹÓõÄÓÐЧÊý×ÖµÄ×î´óÊýÄ¿maximumSignificantDigits

·¶Î§ÊÇ1-21£¬Ä¬ÈÏ21

var a = 123456.6789
a.toLocaleString(undefined, {maximumSignificantDigits: 6}) //123,457

4.5Á½¸ö±£ÁôÓÐЧλµÄÊôÐÔÒ²ºÜÀ÷º¦£¬¿ÉÒÔ±£ÁôÈÎÒâÓÐЧ룬ËÄÉáÎåÈ룬²»×ãλµÄ»á²¹Áã¡£

6. չʾµÄÑùʽstyle

ÊôÐÔstyleÊDz»Í¬ÑùʽչʾѡÏĬÈÏÊÇdecimal¡£ Ñ¡Ï

decimal: ´¿Êý×Ö

percent£º °Ù·Ö±È

unit£º µ¥Î»¸ñʽ£¬ÅäºÏunit£¬µ¥Î»Ê¹Óᣵ¥Î»È¡Öµ

currency£º ÓÃÓÚ»õ±Ò¸ñʽ£¬×¢ÒâÕâ¸öÊôÐÔ²»Äܵ¥¶ÀʹÓ㬻¹µÃÅäÌ×ʹÓÃcurrencyÊôÐÔ

var a = 123456.6789, 
a.toLocaleString(undefined, {style: 'decimal'}) //123,456.679
a.toLocaleString(undefined, {style: 'percent'}) // 12,345,668%
a.toLocaleString(undefined, {style: 'currency', currency: 'EUR'}) // €123,456.68
a.toLocaleString(undefined, {style: 'currency', currency: 'CNY'}) // ?123,456.68
a.toLocaleString(undefined, {style: 'unit', unit: 'acre'}) // 123,456.679ӢĶ

ÆäÖÐcurrencyºÍcurrencyDisplayÒ²¿ÉÅäÌ×ʹÓã¬Ç°ÕßÖƶ¨¶ÔÓ¦µÄ»õ±Ò£¬±ÈÈç USD ¡¢EUR Óë CNY £¨²»Çø·Ö´óСдµÄ£©£¬ºóÕßÔòÊÇ»õ±Ò·ûºÅµÄչʾÑùʽ£¬Ä¬ÈÏcurrencyDisplay£ºsymbol:

var a = 123456.6789, 
a.toLocaleString(undefined, {style: 'currency', currency: 'CNY', currencyDisplay: 'symbol'}) //  ?123,456.68
a.toLocaleString(undefined, {style: 'currency', currency: 'CNY', currencyDisplay: 'code'}) // CNY 123,456.68
a.toLocaleString(undefined, {style: 'currency', currency: 'CNY', currencyDisplay: 'name'}) // 123,456.68ÈËÃñ±Ò

ÉÏÃ涼ÊÇһЩtoLocaleString¶ÔÊý×ֵij£¹æ¸ñʽ£¬Ó¦¶ÔÈÕ³£µÄ¸ñʽ´¦ÀíÓ¦¸Ã¹»Óõġ£

µ±È»Ëü»¹ÓÐDate.prototype.toLocaleString£¬Array.prototype.toLocaleString£¬¸ÐÐËȤ¿ÉÒÔ×ÔÐÐÁ˽âһϡ£

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