EN
TypeScript - for loop / foreach loop
3 points
In TypeScript there are few ways to use for loop.
xxxxxxxxxx1
let text = 'Text...';2
3
for(let i = 0; i < text.length; ++i)4
console.log(text[i]);Output:
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T2
e3
x4
t5
.6
.7
.xxxxxxxxxx1
let array = [ 1, 2, 3, 'text' ];2
3
for(let entry of array)4
console.log(entry);Output:
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12
23
34
textxxxxxxxxxx1
let object = {2
'key1' : {3
name : 'John',4
age : 435
},6
'key2' : {7
name : 'Kate',8
age : 549
},10
'key3' : {11
name : 'Diego',12
age : 2113
},14
};15
16
for(let key in object) {17
let entry = object[key];18
19
console.log(key + ' : ' + entry.name + ', ' + entry.age);20
}Output:
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key3 : Diego, 212
key1 : John, 433
key2 : Kate, 54Note:
for...inloop only iterates over enumerable and non-Symbol properties.
