num+pf
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console.log("Hello World!");
/**
* 识别：
* 数字或小数+[MnPpUuμNn][Ff]|μ 这样模式
* 紧挨着这串字符前及后挨着的不能是中文及字母，
* 数字小于10000
*/
let reg = /(\d{1,4}(?:\.\d+)?|10000)([mnpuμn]f|μ])/ig;
let non_letter_ch = /[^a-zA-Z\\u4e00-\\u9fa5±]/;
let strs =[
"瓷片电容_贴片_1.5pF_±0.25pF_0402_50V_COG_GJM1555C1H1R5CB01_村田_PBF",
"多层片状陶瓷电容_贴片_1μF_±20%_0201_10V_X5R_PBF",
"ESD多层变阻器_贴片_9V_3PF_0402_ESDA0402-09_HUAYING_PBF",
"瓷片电容_贴片_1.2pF_±0.25pF_0402_50V_COG"];
let ret = strs.map(function(v){
let arr = v.split("_").filter(function(w,i){
// console.log(i,w)
let m,mList = [];
while((m = reg.exec(w)) ){
// console.log(m.index,reg.lastIndex)
//前后前后非中文
(m.index === 0 || non_letter_ch.test(m[0][m.index-1]))
&& (reg.lastIndex == m[0].length || non_letter_ch.test(m[0][reg.lastIndex] ))
&& mList.push(m[0]);
}
if(mList.length){
return mList;
}
});
// console.log(arr);
return arr;
});
console.log(ret);
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