/TypeScript/How to use indexOf in typesript

How to use indexOf in typesript

var array = [2, 9, 9];
array.indexOf(2);     // 0
array.indexOf(7);     // -1
array.indexOf(9, 2);  // 2
array.indexOf(2, -1); // -1
array.indexOf(2, -3); // 0

Source: developer.mozilla.org

Similar codes

1 vote131 views1 answer
Stored procedure that selects in to a table
TypeScript
0 vote125 views1 answer
Error TS2304: Cannot find name 'EventEmitter'.
TypeScript
0 vote142 views1 answer
Making barplots in r
TypeScript
0 vote139 views1 answer
Usage: testing_caption_generator.py [-h] -i IMAGE testing_caption_generator.py: error: the following arguments are required: -i/--image An exception has occurred, use %tb to see the full traceback.
TypeScript
3 votes140 views2 answers
How to get the median in typescript
TypeScript
12 votes134 views3 answers
Remove dots from li
TypeScript
0 vote136 views2 answers
Django query to return User whose first name starts with j or last name starts with h
TypeScript
1 vote128 views1 answer
Create an anonimus object in angular
TypeScript
0 vote125 views1 answer
Ionic add next button slides
TypeScript
0 vote135 views1 answer
Writhing requests to text file
TypeScript