Course Intermediate 10914
Course Introduction:"Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.
Course Advanced 16847
Course Introduction:"Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.
Course Advanced 10562
Course Introduction:"Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.
vue 3 ref variable chooses between let and const
2023-12-25 13:40:58 0 1 440
c++ - Type conversion between const int * and int * const
2017-05-16 13:31:16 0 1 845
Course Introduction:This chapter will introduce to you what var, let, and const are in JavaScript? Usage of var, let, const (code). It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.
2018-09-18 comment 0 1239
Course Introduction:Let and const are used to declare variables in JavaScript. The main differences are scope, variability and initialization time: Scope: let is limited to block-level scope, while const is valid in block-level and function scope. Mutability: mutable if declared by let, immutable if declared by const. Initialization: let can be assigned at the time of declaration or later, const must be assigned at the time of declaration and can only be assigned once.
2024-05-06 comment 0 822
Course Introduction:let and const are different ways of declaring variables in JavaScript. The main difference lies in scoping and assignment rules. Scope: let is block level, const is global or block level; assignment rules: let can be reassigned, const cannot be reassigned.
2024-05-07 comment 0 641