这个概念是对于逻辑运算符&&和||而言的,是一种逻辑运算符的求值策略。只有当第一个运算数的值无法确定逻辑运算的结果时,才对第二个运算数进行求值。例如,当&&的第一个运算数的值为false时,其结果必定为false;当||的第一个运算数为true时,最后结果必定为true,在这种情况下,就不需要知道第二个运算数的具体值...
"Does not perform short-circuit evaluation" 通常指的是某个表达式或语句不会利用短路求值(short-circuit evaluation)的特性。在编程中,短路求值是一种优化技术,它允许程序员在逻辑表达式中提前终止某些条件的计算。这通常是通过使用逻辑运算符(如&&或||)来完成的。 例如,在C语言中,当使用&&运算符时,如果左侧的操...
In some science fiction movies,people in the future have their own robots.These robots are just like humans.They help with the housework and do the most unpleasant jobs.Some scientists believe that there will be 正在翻译,请等待... [translate] ashort-circuit evaluation 短路求值 [translate] ...
“短路求值(Short-Circuit Evaluation) // 逻辑与和逻辑或操作符总是先计算其做操作数,只有在仅靠左操作数的值无法确定该逻辑表达式的结果时,才会求解其右操作数。 functionaa() {if(null) { console.log('null') }if(undefined) { console.log('undefined') }if(false) { console.log('false') }if(tr...
这种方式被称为“不执行短路求值”(does not perform short-circuit evaluation)。 在一些编程语言中,当使用逻辑运算符“&&”进行逻辑与操作时,如果第一个表达式的结果为假,那么第二个表达式将不会被执行。这种情况下就是短路求值的应用。但在不执行短路求值的情况下,无论第一个表达式的结果是什么,第二个表达式...
Function Evaluation 2019-11-28 22:54 −Author: Leisureeen Time Limit: 100ms Memory Limit: 65535KB Code Size Limit: 16 KB 64-bit integer IO format: %lld Here given a function, you are ... Leisureeen 0 450 "(error during evaluation)" computed ...
短路求值 是使用 三元运算、&& 和 || 快速求值的方法。使用短路求值,在一行代码内表达出简单的条件赋值 (if...else if...else 或 switch...c...
doi:US4527121 AWerner FischerUlrich FlaigGerhard HettichJohannes LocherUSUS4527121 * May 11, 1982 Jul 2, 1985 Robert Bosch Gmbh Short-circuit-protected evaluation circuit of high stability for variable inductance transducers
In this session, we’ll explore the concept of short-circuit evaluation and uncover some surprising ways it can affect the outcome of your code. We’ll not only explain how it works, but also provide solutions and best practices to avoid these gotchas and write predictable, efficient JavaScript...
Short-circuit evaluation, minimal evaluation, or McCarthy evaluation denotes the semantics of some Boolean operators in some programming languages in which the second argument is only executed or evaluated if the first argument does not suffice to determine the value of the expression: when the ...