full free JavaScript crash course from scratch - part 30 | Map & Map methods
Learn javascript ,Map ,Map in js,Create Map,add item to map ( set method ),printing map,get value with the key (get method ),map vs. object,key data types,map is iterable,for of in map,order of insert,map methods,map get method,map set method,map set method ovwewrite value,map size method,map delete method,map clear method,map has method,map forEach method,map entries method,grab only key of map,grab only value of map,map keys method,map values method,object as map item key,Map.groupBy() ( how to group ittems inside if array ),Object.groupBy() ( how to group ittems inside if array ),Map.groupBy() vs. Object.groupBy()
Hi everyone welcome to new video in this course were going to learn JavaScript from scratch and this is your first step into dynamic web developing and programming witch javascript is the soul of any website
I will be thankful if you write me your question or opinion about the video in the comments
0:00 Map in js
0:35 Create Map
1:40 add item to map ( set method )
2:20 printing map
2:50 get value with the key (get method )
3:30 map vs. object
4:45 key data types
5:15 map is iterable
5:30 for of in map
6:05 order of insert
6:40 map methods
6:50 map get method
7:04 map set method
7:15 map set method ovwewrite value
7:52 map size method
8:22 map delete method
9:10 map clear method
9:30 map has method
10:35 map forEach method
11:32 map entries method
12:30 grab only key of map
12:40 grab only value of map
12:55 map keys method
13:11 map values method
14:10 object as map item key
16:35 Map.groupBy() ( how to group ittems inside if array )
21:40 Object.groupBy() ( how to group ittems inside if array )
22:11 Map.groupBy() vs. Object.groupBy()
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