Created
August 12, 2017 14:03
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Things I love about Typescript
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| /* strict typing extends to browser API which enables error free code at compile time.*/ | |
| // this won't work because querySelector returns type Element | |
| let roomNameEl:HTMLElement = el.querySelector('.room-name') | |
| // this solves the problem | |
| let roomNameEl:Element = el.querySelector('.room-name') | |
| // this will not work cause Element doesn't have value attr | |
| let roomNameEl:Element = el.querySelector('.room-name') | |
| roomNameEl.value // error no such attr | |
| // this will work, also notice typecasting is possible | |
| let roomNameEl:HTMLInputElement = <HTMLInputElement>el.querySelector('.room-name') | |
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