method chaining javascript code example
Example 1: method chaining in javascript
class Arithmetic {
constructor() {
this.value = 0;
}
sum(...args) {
this.value = args.reduce((sum, current) => sum + current, 0);
return this;
}
add(value) {
this.value = this.value + value;
return this;
}
subtract(value) {
this.value = this.value - value;
return this;
}
average(...args) {
this.value = args.length
? (this.sum(...args).value) / args.length
: undefined;
return this;
}
}
a = new Arithmetic()
a.sum(1, 3, 6)
.subtract(3)
.add(4)
.value
Example 2: method chaining
given() .... --> RequestSpecification
.header accept() contentType()
.queryParam
.pathParam
.body
.log
.auth..
when() --->> RequestSender
.get() ------>> Response Object
.post()
.put()
.delete()
then() -----> ValidatableResponse
This is where assertion happen
.statusCode
.header accept() contentType()
.body( matchers goes here)
.log