本文介绍了JavaScript数学表达式评估器的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
—SA
I see no sense in expression evaluator when it comes to Javascript, because the code it can its the Javascript interpreter itself via function eval.
Please see my Javascript calculator; you can get its full source code if you use "View page source": www.sakryukov/freeware/calculator/[^].
—SA
我下载了 JavaScript数学表达式评估器 来自: www.codeproject/KB/scripting/jsexpressioneval/JSExpressionEval_src.zip [ ^ ] 并分析了文件"Tokenizer.js",我认为第47行肯定有错误. u和v之间不应该有逗号: var lstAlpha ="a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,uv,w,x, y,z; 诺伯特 norbert.kraemer@real-net.de
I downloaded JavaScript Mathematical Expression Evaluator from: www.codeproject/KB/scripting/jsexpressioneval/JSExpressionEval_src.zip[^] and analysed the file "Tokenizer.js" and I think there must be a mistake in line number 47. Shouldn''t there be a comma between u and v: var lstAlpha = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,uv,w,x,y,z"; Norbert norbert.kraemer@real-net.de
推荐答案对于Javascript,我认为表达式评估器没有任何意义,因为它可以通过Java解释器本身进行编码功能eval. 请参阅我的Javascript计算器;如果您使用查看页面源代码",则可以获得其完整的源代码: www.sakryukov/freeware/calculator / [ ^ ].
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