Omit<>的用法

Omit类型的实用技巧

export type RMCPickerViewProps = Omit<

PickerViewPropsType,

'data' | 'cols' | 'cascade' | 'onChange'

> & {

columns: PickerColumn[];

handleSelect: (value: PickerValue, index: number) => void;

};

这个类型的核心作用是:在继承 PickerViewPropsType 的大部分属性的同时,强制要求实现 columnshandleSelect 这两个关键属性,并排除掉 datacolscascadeonChange 这几个不需要的属性

  • Omit<PickerViewPropsType, 'data' | 'cols' | 'cascade' | 'onChange'>

    • 这部分表示从 PickerViewPropsType 类型中“剔除”掉 datacolscascadeonChange 这四个属性。也就是说,使用 RMCPickerViewProps 的组件将不能直接使用这四个属性。
  • & { columns: PickerColumn[]; handleSelect: (value: PickerValue, index: number) => void; }

    • 这部分表示在剔除上述属性后,再“添加”上 columnshandleSelect 这两个新的必需属性。

    • columns 是一个 PickerColumn 类型的数组,通常用于定义多列选择器的每一列数据。

    • handleSelect 是一个回调函数,当用户选择某个选项时触发,接收选中的值 value 和所在列的索引 index 作为参数。

这个类型定义通常用于封装一个更高级的、基于 PickerView 的自定义选择器组件,通过这种方式可以更好地控制组件的接口和行为。


这个类型定义本身是正确的,但要确保它能正常工作,关键在于 PickerViewPropsTypePickerColumnPickerValue 这几个类型是否正确定义并被正确引入。

我输入了iw dev wifi1 info,输出是 Usage: iw [options] command Options: --debug enable netlink debugging --version show version (5.16) Commands: dev <devname> ap stop Stop AP functionality dev <devname> ap start <SSID> <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]] <beacon interval in TU> <DTIM period> [hidden-ssid|zeroed-ssid] head <beacon head in hexadecimal> [tail <beacon tail in hexadecimal>] [inactivity-time <inactivity time in seconds>] [key0:abcde d:1:6162636465] phy <phyname> coalesce show Show coalesce status. phy <phyname> coalesce disable Disable coalesce. phy <phyname> coalesce enable <config-file> Enable coalesce with given configuration. The configuration file contains coalesce rules: delay=<delay> condition=<condition> patterns=<[offset1+]<pattern1>,<[offset2+]<pattern2>,...> delay=<delay> condition=<condition> patterns=<[offset1+]<pattern1>,<[offset2+]<pattern2>,...> ... delay: maximum coalescing delay in msec. condition: 1/0 i.e. 'not match'/'match' the patterns patterns: each pattern is given as a bytestring with '-' in places where any byte may be present, e.g. 00:11:22:-:44 will match 00:11:22:33:44 and 00:11:22:33:ff:44 etc. Offset and pattern should be separated by '+', e.g. 18+43:34:00:12 will match '43:34:00:12' after 18 bytes of offset in Rx packet. dev <devname> auth <SSID> <bssid> <type:open|shared> <freq in MHz> [key 0:abcde d:1:6162636465] Authenticate with the given network. dev <devname> connect [-w] <SSID> [<freq in MHz>] [<bssid>] [auth open|shared] [key 0:abcde d:1:6162636465] [mfp:req/opt/no] Join the network with the given SSID (and frequency, BSSID). With -w, wait for the connect to finish or fail. dev <devname> disconnect Disconnect from the current network. dev <devname> cqm rssi <threshold|off> [<hysteresis>] Set connection quality monitor RSSI threshold. event [-t|-T|-r] [-f] Monitor events from the kernel. -t - print timestamp -T - print absolute, human-readable timestamp -r - print relative timestamp -f - print full frame for auth/assoc etc. dev <devname> ftm start_responder [lci=<lci buffer in hex>] [civic=<civic buffer in hex>] Start an FTM responder. Needs a running ap interface dev <devname> ftm get_stats Get FTM responder statistics. phy <phyname> hwsim wakequeues phy <phyname> hwsim stopqueues phy <phyname> hwsim setps <value> phy <phyname> hwsim getps dev <devname> ibss join <SSID> <freq in MHz> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] [fixed-freq] [<fixed bssid>] [beacon-interval <TU>] [basic-rates <rate in Mbps,rate2,...>] [mcast-rate <rate in Mbps>] [key d:0:abcde] Join the IBSS cell with the given SSID, if it doesn't exist create it on the given frequency. When fixed frequency is requested, don't join/create a cell on a different frequency. When a fixed BSSID is requested use that BSSID and do not adopt another cell's BSSID even if it has higher TSF and the same SSID. If an IBSS is created, create it with the specified basic-rates, multicast-rate and beacon-interval. dev <devname> ibss leave Leave the current IBSS cell. features phy list List all wireless devices and their capabilities. phy <phyname> info Show capabilities for the specified wireless device. dev <devname> switch channel <channel> [6G] [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|320MHz] [ru-puncturing-bitmap <bitmap>] [beacons <count>] [block-tx] Switch the operating channel by sending a channel switch announcement (CSA).6GHz channels expects '6G' in argument. Defaults to 5GHz or 2GHz channels dev <devname> switch freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|320MHz] [ru-puncturing-bitmap <bitmap>] [beacons <count>] [block-tx] dev <devname> switch freq <control freq> [5|10|20|40|80|80+80|160|320] [<center1_freq> [<center2_freq>]] [ru-puncturing-bitmap <bitmap>] [beacons <count>] [block-tx] Switch the operating channel by sending a channel switch announcement (CSA). dev List all network interfaces for wireless hardware. dev <devname> info Show information for this interface. dev <devname> del Remove this virtual interface dev <devname> interface add <name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>] phy <phyname> interface add <name> type <type> [mesh_id <meshid>] [4addr on|off] [flags <flag>*] [addr <mac-addr>] Add a new virtual interface with the given configuration. Valid interface types are: managed, ibss, monitor, mesh, wds. The flags are only used for monitor interfaces, valid flags are: none: no special flags fcsfail: show frames with FCS errors control: show control frames otherbss: show frames from other BSSes cook: use cooked mode active: use active mode (ACK incoming unicast packets) mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address The mesh_id is used only for mesh mode. help [command] Print usage for all or a specific command, e.g. "help wowlan" or "help wowlan enable". dev <devname> link Print information about the current link, if any. dev <devname> measurement ftm_request <config-file> [timeout=<seconds>] [randomise[=<addr>/<mask>]] Send an FTM request to the targets supplied in the config file. Each line in the file represents a target, with the following format: <addr> bw=<[20|40|80|80+80|160]> cf=<center_freq> [cf1=<center_freq1>] [cf2=<center_freq2>] [ftms_per_burst=<samples per burst>] [ap-tsf] [asap] [bursts_exp=<num of bursts exponent>] [burst_period=<burst period>] [retries=<num of retries>] [burst_duration=<burst duration>] [preamble=<legacy,ht,vht,dmg>] [lci] [civic] [tb] [non_tb] dev <devname> mesh_param dump List all supported mesh parameters dev <devname> mesh leave Leave a mesh. dev <devname> mesh join <mesh ID> [[freq <freq in MHz> <NOHT|HT20|HT40+|HT40-|80MHz> [ru-puncturing-bitmap <bitmap>]] [basic-rates <rate in Mbps,rate2,...>]], [mcast-rate <rate in Mbps>] [beacon-interval <time in TUs>] [dtim-period <value>] [vendor_sync on|off] [<param>=<value>]* Join a mesh with the given mesh ID with frequency, basic-rates, mcast-rate and mesh parameters. Basic-rates are applied only if frequency is provided. dev <devname> mgmt dump frame <type as hex ab> <pattern as hex ab:cd:..> [frame <type> <pattern>]* [count <frames>] Register for receiving certain mgmt frames and print them. Frames are selected by their type and pattern containing the first several bytes of the frame that should match. Example: iw dev wlan0 mgmt dump frame 40 00 frame 40 01:02 count 10 dev <devname> mpath dump List known mesh paths. dev <devname> mpath set <destination MAC address> next_hop <next hop MAC address> Set an existing mesh path's next hop. dev <devname> mpath new <destination MAC address> next_hop <next hop MAC address> Create a new mesh path (instead of relying on automatic discovery). dev <devname> mpath del <MAC address> Remove the mesh path to the given node. dev <devname> mpath get <MAC address> Get information on mesh path to the given node. dev <devname> mpath probe <destination MAC address> frame <frame> Inject ethernet frame to given peer overriding the next hop lookup from mpath table. .Example: iw dev wlan0 mpath probe xx:xx:xx:xx:xx:xx frame 01:xx:xx:00 dev <devname> mpp dump List known mesh proxy paths. dev <devname> mpp get <MAC address> Get information on mesh proxy path to the given node. wdev <idx> nan add_func type <publish|subscribe|followup> [active] [solicited] [unsolicited] [bcast] [close_range] name <name> [info <info>] [flw_up_id <id> flw_up_req_id <id> flw_up_dest <mac>] [ttl <ttl>] [srf <include|exclude> <bf|list> [bf_idx] [bf_len] <mac1;mac2...>] [rx_filter <str1:str2...>] [tx_filter <str1:str2...>] wdev <idx> nan rm_func cookie <cookie> wdev <idx> nan config [pref <pref>] [bands [2GHz] [5GHz]] wdev <idx> nan stop wdev <idx> nan start pref <pref> [bands [2GHz] [5GHz]] dev <devname> ocb leave Leave the OCB mode network. dev <devname> ocb join <freq in MHz> <5MHz|10MHz> Join the OCB mode network. dev <devname> offchannel <freq> <duration> Leave operating channel and go to the given channel for a while. wdev <idx> p2p stop wdev <idx> p2p start dev <devname> cac channel <channel> [6G] [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] dev <devname> cac freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] dev <devname> cac freq <control freq> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]] dev <devname> cac trigger channel <channel> [6G] [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] dev <devname> cac trigger freq <frequency> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz] dev <devname> cac trigger freq <frequency> [5|10|20|40|80|80+80|160] [<center1_freq> [<center2_freq>]] Start or trigger a channel availability check (CAC) looking to look for radars on the given channel. phy <phyname> channels Show available channels. reg reload Reload the kernel's regulatory database. phy <phyname> reg get Print out the devices' current regulatory domain information. reg get Print out the kernel's current regulatory domain information. reg set <ISO/IEC 3166-1 alpha2> Notify the kernel about the current regulatory domain. dev <devname> roc start <freq> <time in ms> dev <devname> scan [-u] [freq <freq>*] [HT40+|HT40-|80MHz] [duration <dur>] [ies <hex as 00:11:..>] [meshid <meshid>] [lowpri,flush,ap-force,duration-mandatory] [randomise[=<addr>/<mask>]] [ssid <ssid>*|passive] Scan on the given frequencies and probe for the given SSIDs (or wildcard if not given) unless passive scanning is requested. If channel mode/width is provided along with frequency, only scanning on primary frequency of channel mode/width is done. If -u is specified print unknown data in the scan results. Specified (vendor) IEs must be well-formed. dev <devname> scan sched_stop Stop an ongoing scheduled scan. dev <devname> scan sched_start [interval <in_msecs> | scan_plans [<interval_secs:iterations>*] <interval_secs>] [delay <in_secs>] [freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]] [coloc] [flush] Start a scheduled scan at the specified interval on the given frequencies with probing for the given SSIDs (or wildcard if not given) unless passive scanning is requested. If matches are specified, only matching results will be returned. dev <devname> scan abort Abort ongoing scan dev <devname> scan trigger [freq <freq>*] [HT40+|HT40-|80MHz] [duration <dur>] [ies <hex as 00:11:..>] [meshid <meshid>] [lowpri,flush,ap-force,duration-mandatory,coloc] [randomise[=<addr>/<mask>]] [ssid <ssid>*|passive] Trigger a scan on the given frequencies with probing for the given SSIDs (or wildcard if not given) unless passive scanning is requested. If channel mode/width is provided along with frequency, only scanning on primary frequency of channel mode/width is done. Duration(in TUs), if specified, will be used to set dwell times. dev <devname> scan dump [-u] Dump the current scan results. If -u is specified, print unknown data in scan results. dev <devname> set bitrates [legacy-<2.4|5> <legacy rate in Mbps>*] [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> [he-mcs-<2.4|5|6> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [sgi-2.4|lgi-2.4] [sgi-5|lgi-5] [he-gi-<2.4|5|6> <0.8|1.6|3.2>] [he-ltf-<2.4|5|6> <1|2|4>] [he-ul-mcs-<2.4|5> <NSS:MCS>] [eht-mcs-<2.4|5|6> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [eht-gi-<2.4|5|6> <0.8|1.6|3.2>] [eht-ltf-<2.4|5|6> <1|2|4>] Sets up the specified rate masks. Not passing any arguments would clear the existing mask (if any). dev <devname> set ap_ps <Enable[1]/Disable[0]> dev <devname> set tidconf [peer <MAC address>] tids <mask> [override] [sretry <num>] [lretry <num>] [ampdu [on <num>|off]] [amsdu [on <num>|off]] [noack [on|off]] [rtscts [on|off]][bitrates <type [auto|fixed|limit]> [legacy-<2.4|5> <legacy rate in Mbps>*] [ht-mcs-<2.4|5> <MCS index>*] [vht-mcs-<2.4|5> <NSS:MCSx,MCSy... | NSS:MCSx-MCSy>*] [sgi-2.4|lgi-2.4] [sgi-5|lgi-5]] Setup per-node TID specific configuration for TIDs selected by bitmask. If MAC address is not specified, then supplied TID configuration applied to all the peers. Examples: $ iw dev wlan0 set tidconf tids 0x1 ampdu off $ iw dev wlan0 set tidconf tids 0x5 ampdu off amsdu off rtscts on $ iw dev wlan0 set tidconf tids 0x3 override ampdu on [1-1024] noack on rtscts on $ iw dev wlan0 set tidconf peer xx:xx:xx:xx:xx:xx tids 0x1 ampdu off tids 0x3 amsdu off rtscts on $ iw dev wlan0 set tidconf peer xx:xx:xx:xx:xx:xx tids 0x2 bitrates auto $ iw dev wlan0 set tidconf peer xx:xx:xx:xx:xx:xx tids 0x2 bitrates limit legacy-5 ht-mcs-5 vht-mcs-5 he-mcs-5 2:3 dev <devname> set tid_aggr_conf tid <tid> <[peer <MAC address>] aggr on|off> Enable/disable aggregation for the TIDs dev <devname> set tid_retry_count tid <tid> <[peer <MAC address>] short <limit> long <limit>]> Set the retry count for the TIDs dev <devname> set mcast_rate <rate in Mbps> Set the multicast bitrate. dev <devname> set peer <MAC address> Set interface WDS peer. dev <devname> set noack_map <[peer <addr>] [map]> Set the NoAck map for the TIDs. (0x0009 = BE, 0x0006 = BK, 0x0030 = VI, 0x00C0 = VO) dev <devname> set 4addr <on|off> Set interface 4addr (WDS) mode. dev <devname> set type <type> Set interface type/mode. Valid interface types are: managed, ibss, monitor, mesh, wds. dev <devname> set meshid <meshid> dev <devname> set monitor <flag>* Set monitor flags. Valid flags are: none: no special flags fcsfail: show frames with FCS errors control: show control frames otherbss: show frames from other BSSes cook: use cooked mode active: use active mode (ACK incoming unicast packets) mumimo-groupid <GROUP_ID>: use MUMIMO according to a group id mumimo-follow-mac <MAC_ADDRESS>: use MUMIMO according to a MAC address dev <devname> set mesh_param <param>=<value> [<param>=<value>]* Set mesh parameter (run command without any to see available ones). phy <phyname> set txq limit <packets> | memory_limit <bytes> | quantum <bytes> Set TXQ parameters. The limit and memory_limit are global queue limits for the whole phy. The quantum is the DRR scheduler quantum setting. Valid values: 1 - 2**32 phy <phyname> set antenna_gain <antenna gain in dBm> Specify antenna gain. phy <phyname> set antenna <bitmap> | all | <tx bitmap> <rx bitmap> Set a bitmap of allowed antennas to use for TX and RX. The driver may reject antenna configurations it cannot support. dev <devname> set txpower <auto|fixed|limit> [<tx power in mBm>] Specify transmit power level and setting type. phy <phyname> set txpower <auto|fixed|limit> [<tx power in mBm>] Specify transmit power level and setting type. phy <phyname> set distance <auto|distance> Enable ACK timeout estimation algorithm (dynack) or set appropriate coverage class for given link distance in meters. To disable dynack set valid value for coverage class. Valid values: 0 - 114750 phy <phyname> set coverage <coverage class> Set coverage class (1 for every 3 usec of air propagation time). Valid values: 0 - 255. phy <phyname> set netns { <pid> | name <nsname> } Put this wireless device into a different network namespace: <pid> - change network namespace by process id <nsname> - change network namespace by name from /var/run/netns or by absolute path (man ip-netns) phy <phyname> set retry [short <limit>] [long <limit>] Set retry limit. phy <phyname> set rts <rts threshold|off> Set rts threshold. phy <phyname> set frag <fragmentation threshold|off> Set fragmentation threshold. dev <devname> set channel <channel> [6G] [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] [6G] [ru-puncturing-bitmap <bitmap>] phy <phyname> set channel <channel> [6G] [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] [ru-puncturing-bitmap <bitmap>] dev <devname> set freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] dev <devname> set freq <control freq> [5|10|20|40|80|80+80|160|320] [<center1_freq> [<center2_freq>]] [ru-puncturing-bitmap <bitmap>] phy <phyname> set freq <freq> [NOHT|HT20|HT40+|HT40-|5MHz|10MHz|80MHz|160MHz|320MHz] phy <phyname> set freq <control freq> [5|10|20|40|80|80+80|160|320] [<center1_freq> [<center2_freq>]] [ru-puncturing-bitmap <bitmap>] Set frequency/channel the hardware is using, including HT configuration. phy <phyname> set name <new name> Rename this wireless device. dev <devname> set power_save <on|off> Set power save state to on or off. phy <phyname> set sar_specs <sar type> <range index:sar power>* Set SAR specs corresponding to SAR capa of wiphy. dev <devname> get mesh_param [<param>] Retrieve mesh parameter (run command without any to see available ones). phy <phyname> get txq Get TXQ parameters. dev <devname> get power_save Retrieve power save state. dev <devname> station dump [-v] List all stations known, e.g. the AP on managed interfaces dev <devname> station set <MAC address> mgmt_rts_cts <on|off> Enable/Disable rts/cts for management frames dev <devname> station set <MAC address> txpwr <auto|limit> [<tx power dBm>] Set Tx power for this station. dev <devname> station set <MAC address> airtime_weight <weight> Set airtime weight for this station. dev <devname> station set <MAC address> mesh_power_mode <active|light|deep> Set link-specific mesh power mode for this station dev <devname> station set <MAC address> vlan <ifindex> Set an AP VLAN for this station. dev <devname> station set <MAC address> plink_action <open|block> Set mesh peer link action for this station (peer). dev <devname> station del <MAC address> [subtype <subtype>] [reason-code <code>] Remove the given station entry (use with caution!) Example subtype values: 0xA (disassociation), 0xC (deauthentication) dev <devname> station get <MAC address> Get information for a specific station. dev <devname> survey dump List all gathered channel survey data dev <devname> vendor recvbin <oui> <subcmd> <filename|-|hex data> dev <devname> vendor recv <oui> <subcmd> <filename|-|hex data> dev <devname> vendor send <oui> <subcmd> <filename|-|hex data> phy <phyname> wowlan show Show WoWLAN status. phy <phyname> wowlan disable Disable WoWLAN. phy <phyname> wowlan enable [any] [disconnect] [magic-packet] [gtk-rekey-failure] [eap-identity-request] [4way-handshake] [rfkill-release] [net-detect [interval <in_msecs> | scan_plans [<interval_secs:iterations>*] <interval_secs>] [delay <in_secs>] [freqs <freq>+] [matches [ssid <ssid>]+]] [active [ssid <ssid>]+|passive] [randomise[=<addr>/<mask>]] [coloc] [flush]] [tcp <config-file>] [patterns [offset1+]<pattern1> ...] Enable WoWLAN with the given triggers. Each pattern is given as a bytestring with '-' in places where any byte may be present, e.g. 00:11:22:-:44 will match 00:11:22:33:44 and 00:11:22:33:ff:44 etc. Offset and pattern should be separated by '+', e.g. 18+43:34:00:12 will match '43:34:00:12' after 18 bytes of offset in Rx packet. The TCP configuration file contains: source=ip[:port] dest=ip:port@mac data=<hex data packet> data.interval=seconds [wake=<hex packet with masked out bytes indicated by '-'>] [data.seq=len,offset[,start]] [data.tok=len,offset,<token stream>] Net-detect configuration example: iw phy0 wowlan enable net-detect interval 5000 delay 30 freqs 2412 2422 matches ssid foo ssid bar Commands that use the netdev ('dev') can also be given the 'wdev' instead to identify the device. You can omit the 'phy' or 'dev' if the identification is unique, e.g. "iw wlan0 info" or "iw phy0 info". (Don't when scripting.) Do NOT screenscrape this tool, we don't consider its output stable. 说明什么
10-18
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