javascript tip1 45 useful javascript tips 1 – Don’t forget var keyword when assigning a variable’s value for the first time.Assignment to an undeclared variable automatically results in a global variable being created. Avoid global variables.2 – use === instead of ==The == (or !=) operator performs an automatic type conversion if needed. The === (or !==) operator will not perform any conversion. It compares the value and the type, which.. 2015. 3. 30. 이전 1 다음