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javascript-tutorial-basic/custom.js at master · ManasiRoy/javascript-tutorial-basic · GitHub
ManasiRoy
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javascript-tutorial-basic
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var
firstname
=
"Manasi"
;
console
.
log
(
firstname
)
;
var
lastname
=
"Roy"
;
var
age
=
33
;
var
fullAge
=
'true'
;
console
.
log
(
fullAge
)
;
var
job
;
console
.
log
(
job
)
job
=
'teacher'
;
console
.
log
(
job
)
;
console
.
log
(
firstname
+
' '
+
lastname
+
' '
+
age
)
;
var
job
,
isMarried
;
job
=
'teacher'
;
isMarried
=
false
;
console
.
log
(
firstname
+
' '
+
lastname
+
' '
+
age
+
' '
+
job
+
'.'
+
"Is she Married? "
+
' '
+
isMarried
)
;
// =============================================================================================
var
year
,
yearManasi
,
yearBhai
;
now
=
2019
;
ageManasi
=
33
;
ageBhai
=
27
;
yearManasi
=
now
-
ageManasi
;
yearBhai
=
now
-
ageBhai
;
console
.
log
(
yearManasi
)
;
console
.
log
(
yearBhai
)
;
var
teamJohn
=
(
89
+
120
+
103
)
/
3
;
var
teamMike
=
(
116
+
94
+
123
)
/
3
;
console
.
log
(
teamJohn
,
teamMike
)
;
if
(
teamJohn
>
teamMike
)
{
console
.
log
(
"Win Team John"
+
teamJohn
)
}
else
if
(
teamMike
>
teamJohn
)
{
console
.
log
(
"Win Team Mike"
+
' '
+
teamMike
)
}
else
{
'There is Draw'
}
//=====================================================================================
var
whatyoudo
=
(
job
,
firstname
)
=>
{
switch
(
job
)
{
case
'teacher'
:
return
firstname
+
'My job'
case
'Web Developer'
:
return
firstname
+
'My Job is Developed'
default
:
return
firstname
+
'else'
}
}
console
.
log
(
whatyoudo
(
'teacher'
,
'Web Developer'
)
)
//=====================================================================================
var
names
=
[
'Manasi'
,
'Mark'
,
'Jane'
]
;
var
years
=
[
1986
,
1969
,
1948
]
console
.
log
(
names
[
0
]
)
;
console
.
log
(
names
.
length
)
names
[
1
]
=
'Pitter'
;
console
.
log
(
names
)
var
names
=
[
'Manasi'
,
'Mark'
,
'Jane'
]
;
// Last element add
names
.
push
(
'Kitty'
)
;
console
.
log
(
names
)
;
// first element add
names
.
unshift
(
'Pubj'
)
;
console
.
log
(
names
)
;
//remove last element
names
.
pop
(
)
;
console
.
log
(
names
)
;
// first element remove
names
.
shift
(
'Pubj'
)
;
console
.
log
(
names
)
;
function
tipCalculator
(
bill
)
{
var
percentage
;
if
(
bill
<
50
)
{
percentage
=
.2
;
}
else
if
(
bill
>=
50
&&
bill
<
200
)
{
percentage
=
.15
;
}
else
{
percentage
=
1
;
}
return
percentage
*
bill
;
}
var
bills
=
[
124
,
48
,
268
]
;
var
tips
=
[
tipCalculator
(
bills
[
0
]
)
,
tipCalculator
(
bills
[
1
]
)
,
tipCalculator
(
bills
[
2
]
)
]
console
.
log
(
tips
)
;
//=====================================================================================
//object under define function with this method
var
Person
=
{
birthYear
:
'1986'
,
calAge
:
function
PersonYear
(
)
{
return
2019
-
this
.
birthYear
;
}
}
Person
.
calAge
(
)
;
console
.
log
(
Person
)
;
//======================================Spread Oparator===============================================
const
People
=
[
'Manasi'
,
'Mark'
,
'Jane'
]
;
const
Animal
=
[
'Lion'
,
'Tiger'
,
...
People
]
console
.
log
(
Animal
)
;
//========================================= Remove Duplicate ============================================
const
namesArray
=
[
'ruy'
,
'chuli'
,
'ruy'
,
'manasi'
]
console
.
log
(
namesArray
)
;
const
uniqueName
=
[
...
new
Set
(
namesArray
)
]
;
console
.
log
(
uniqueName
)
;
const
Ninja
=
new
Set
(
[
{
name
:
'Manasi'
,
age
:
'50'
}
,
{
name
:
'Herry'
,
age
:
'20'
}
,
{
name
:
'Bholanath'
,
age
:
'500'
}
]
)
Ninja
.
forEach
(
ninja
=>
{
console
.
log
(
ninja
.
name
,
ninja
.
age
)
;
}
)
// Filter =========================================================
const
scores
=
[
10
,
20
,
30
,
40
,
50
,
]
scores
.
filter
(
(
)
=>
{
return
scores
;
}
)
console
.
log
(
scores
)
;
const
ninjas
=
[
{
name
:
'Manasi'
,
age
:
'50'
}
,
{
name
:
'Herry'
,
age
:
'20'
}
,
{
name
:
'Bholanath'
,
age
:
'500'
}
]
const
NinjaList
=
ninjas
.
filter
(
(
nlist
)
=>
{
console
.
log
(
nlist
.
name
,
nlist
.
age
)
;
return
nlist
;
}
)
const
xyz
=
[
{
Name
:
"Mark"
,
Age
:
33
}
,
{
Name
:
"Markk"
,
Age
:
55
}
,
{
Name
:
"Markkk"
,
Age
:
66
}
]
const
mnop
=
xyz
.
filter
(
(
v
)
=>
{
return
v
}
)
console
.
log
(
mnop
)
;
// const NinjaList = ninjas.filter(nlist => nlist)
// Switch Case =================================================
const
Payment
=
'Check'
;
switch
(
Payment
)
{
case
'Check'
:
console
.
log
(
`You are using
${
Payment
}
`
)
;
break
;
default
:
console
.
log
(
`Please select a valid state`
)
;
break
;
}
const
PersonSelect
=
[
'Manasi'
,
'Diya'
]
const
selected
=
0
;
let
person
;
switch
(
selected
)
{
case
0
:
person
=
PersonSelect
[
0
]
break
;
case
1
:
person
=
PersonSelect
[
1
]
break
;
}
console
.
log
(
`You are Selected
${
person
}
`
)
// Normal function to Arrow Function =====================================
const
Normal
=
function
(
)
{
return
(
'this is a normal function'
)
}
console
.
log
(
Normal
(
)
)
const
NormalArrow
=
(
)
=>
{
return
(
'this is a arrow function'
)
}
console
.
log
(
NormalArrow
(
)
)
// function constructor ==============================
// Example 1
function
details
(
name
,
age
)
{
this
.
name
=
name
;
this
.
age
=
age
;
}
const
newDetails
=
new
details
(
'Manasi'
,
33
)
console
.
log
(
newDetails
.
age
)
;
console
.
log
(
newDetails
.
name
)
;
// Example 2
const
Details
=
new
Function
(
'name'
,
'age'
,
`this.name = name; this.age = age;`
)
const
Mark
=
new
Details
(
'Mark'
,
35
)
console
.
log
(
Mark
.
name
)
;
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