HttpParams
class
| npm Package | @angular/common | 
|---|---|
| Module | import { HttpParams } from '@angular/common/http'; |  
| Source | common/http/src/params.ts | 
Overview
class HttpParams {
  constructor(options: {} as {...})
  has(param: string): boolean
  get(param: string): string | null
  getAll(param: string): string[] | null
  keys(): string[]
  append(param: string, value: string): HttpParams
  set(param: string, value: string): HttpParams
  delete(param: string, value?: string): HttpParams
  toString(): string
}   Description
An HTTP request/response body that represents serialized parameters, per the MIME type application/x-www-form-urlencoded.
This class is immutable - all mutation operations return a new instance.
Constructor
constructor(options: {} as {
    fromString?: string;
    fromObject?: {
        [param: string]: string | string[];
    };
    encoder?: HttpParameterCodec;
} = {} as {
    fromString?: string;
    fromObject?: {
        [param: string]: string | string[];
    };
    encoder?: HttpParameterCodec;
})
Members
has(param: string): boolean
 Check whether the body has one or more values for the given parameter name.
get(param: string): string | null
 Get the first value for the given parameter name, or null if it's not present.
getAll(param: string): string[] | null
 Get all values for the given parameter name, or null if it's not present.
keys(): string[]
 Get all the parameter names for this body.
append(param: string, value: string): HttpParams
 Construct a new body with an appended value for the given parameter name.
set(param: string, value: string): HttpParams
 Construct a new body with a new value for the given parameter name.
delete(param: string, value?: string): HttpParams
 Construct a new body with either the given value for the given parameter removed, if a value is given, or all values for the given parameter removed if not.
toString(): string
 Serialize the body to an encoded string, where key-value pairs (separated by =) are separated by &s.
    © 2010–2018 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
    https://v5.angular.io/api/common/http/HttpParams