datai-vue/src/utils/StrUtil.ts

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2025-12-08 22:00:21 +08:00
/**
*
**/
export const StrUtil = {
/**
* <br>
* 1null <br>
* 2<br>
* 3""<br>
*
* @param str
* @return boolean
*/
isBlank: function (str: string) {
return str === undefined || str == null || this.trim(str) === "";
},
/**
* <br>
* 1null <br>
* 2<br>
* 3""<br>
*
* @param str
* @return boolean
*/
isNotBlank: function (str: string) {
// == 代表相同,=== 代表严格相同
return false === StrUtil.isBlank(str);
},
/**
* :<br>
* 1null <br>
* 2""<br>
*
* @param str
* @return boolean
*/
isEmpty: function (str: string) {
return str == null || str === "";
},
/**
* <br>
* 1null <br>
* 2""<br>
*
* @param str
* @return boolean
*/
isNotEmpty: function (str: string) {
return !StrUtil.isEmpty(str);
},
/**
*
*
* @param str
* @return string
*/
nullToStr: function (str: string) {
if (StrUtil.isEmpty(str)) {
return "";
}
return str;
},
/**
*
*
* @param str
* @return string
*/
trim: function (str: string) {
if (str == null) {
return "";
}
return str.toString().replace(/(^\s*)|(\s*$)|\r|\n/g, "");
},
/**
*
*
* @param str
* @param that
* @return boolean
*/
equals: function (str: string, that: string) {
return str === that;
},
/**
*
*
* @param str
* @param that
* @return boolean
*/
equalsIgnoreCase: function (str: string, that: string) {
return String(str).toUpperCase() === String(that).toUpperCase();
},
/**
*
*
* @param str
* @param sep
* @param maxLen
* @return string[]
*/
split: function (str: string, sep: string, maxLen?: number) {
if (StrUtil.isEmpty(str)) {
return null;
}
const value = String(str).split(sep);
return maxLen ? value.slice(0, maxLen - 1) : value;
},
/**
* (%s )
*
* @param str
* @return
*/
sprintf: function (str: string) {
let args = arguments, flag = true, i = 1;
str = str.replace(/%s/g, function () {
const arg = args[i++];
if (typeof arg === 'undefined') {
flag = false;
return '';
}
return arg;
});
return flag ? str : '';
},
/**
* start开头
*
* @param str
* @param start
* @return boolean
*/
startWith: function (str: string, start: string) {
const reg = new RegExp("^" + start);
return reg.test(str);
},
/**
* end结尾
*
* @param str
* @param end
* @return boolean
*/
endWith: function (str: string, end: string) {
const reg = new RegExp(end + "$");
return reg.test(str);
},
/**
*
*
* @param input
* @param searchStr
* @return boolean
*/
contains: function (input: string, searchStr: string) {
if (this.isEmpty(input) || this.isEmpty(searchStr)) {
return false;
}
return input.indexOf(searchStr) !== -1;
},
/**
*
* @param input
* @returns boolean
*/
containsWhitespace: function (input: string) {
return this.contains(input, ' ');
},
/**
*
* @param ch
* @param repeatTimes
* @returns string
*/
repeat: function (ch: string, repeatTimes: number) {
let result = "";
for (let i = 0; i < repeatTimes; i++) {
result += ch;
}
return result;
},
/**
*
* @param input
* @returns string
*/
deleteWhitespace: function (input: string) {
return input.replace(/\s+/g, '');
},
/**
*
* @param input
* @returns string
*/
rightPad: function (input: string, size: number, padStr: string) {
return input + this.repeat(padStr, size);
},
/**
*
* @param input
* @param size
* @param padStr
* @returns string
*/
leftPad: function (input: string, size: number, padStr: string) {
return this.repeat(padStr, size) + input;
},
/**
*
* @param input
* @returns string
*/
capitalize: function (input: string) {
let strLen = 0;
if (input == null || (strLen = input.length) === 0) {
return input;
}
return input.replace(/^[a-z]/, function (matchStr) {
return matchStr.toLocaleUpperCase();
});
},
/**
*
* @param input
* @returns string
*/
uncapitalize: function (input: string) {
let strLen = 0;
if (input == null || (strLen = input.length) === 0) {
return input;
}
return input.replace(/^[A-Z]/, function (matchStr) {
return matchStr.toLocaleLowerCase();
});
},
/**
*
* @param input
* @returns string
*/
swapCase: function (input: string) {
return input.replace(/[a-z]/ig, function (matchStr) {
if (matchStr >= 'A' && matchStr <= 'Z') {
return matchStr.toLocaleLowerCase();
} else if (matchStr >= 'a' && matchStr <= 'z') {
return matchStr.toLocaleUpperCase();
}
return matchStr;
});
},
/**
* 线
* @param input
* @returns string
*/
camelCase: function (input: string) {
return input.replace(/_[a-z]/g, str1 => str1.substr(-1).toUpperCase());
},
/**
*
* @param input
* @returns string
*/
titleCase: function (input: string) {
return input.replace(/( |^)[a-z]/g, L => L.toUpperCase());
},
/**
*
* @param input
* @param sub
* @returns number
*/
countMatches: function (input: string, sub: string) {
if (this.isEmpty(input) || this.isEmpty(sub)) {
return 0;
}
let count = 0;
let index = 0;
while ((index = input.indexOf(sub, index)) !== -1) {
index += sub.length;
count++;
}
return count;
},
/**
*
* @param input
* @returns boolean
*/
isAlpha: function (input: string) {
return /^[a-z]+$/i.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isAlphaSpace: function (input: string) {
return /^[a-z\s]*$/i.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isAlphanumeric: function (input: string) {
return /^[a-z0-9]+$/i.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isAlphanumericSpace: function (input: string) {
return /^[a-z0-9\s]*$/i.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isNumeric: function (input: string) {
return /^(?:[1-9]\d*|0)(?:\.\d+)?$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isDecimal: function (input: string) {
return /^[-+]?(?:0|[1-9]\d*)\.\d+$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isNegativeDecimal: function (input: string) {
return /^\-?(?:0|[1-9]\d*)\.\d+$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isPositiveDecimal: function (input: string) {
return /^\+?(?:0|[1-9]\d*)\.\d+$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isInteger: function (input: string) {
return /^[-+]?(?:0|[1-9]\d*)$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isPositiveInteger: function (input: string) {
return /^\+?(?:0|[1-9]\d*)$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isNegativeInteger: function (input: string) {
return /^\-?(?:0|[1-9]\d*)$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isNumericSpace: function (input: string) {
return /^[\d\s]*$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isWhitespace: function (input: string) {
return /^\s*$/.test(input);
},
// 是否全是小写字母
isAllLowerCase: function (input: string) {
return /^[a-z]+$/.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isAllUpperCase: function (input: string) {
return /^[A-Z]+$/.test(input);
},
/**
*
* @param input
* @param defaultStr
* @returns string
*/
defaultString: function (input: string, defaultStr: string) {
return input == null ? defaultStr : input;
},
/**
*
* @param input
* @param defaultStr
* @returns string
*/
defaultIfBlank: function (input: string, defaultStr: string) {
return this.isBlank(input) ? defaultStr : input;
},
/**
*
* @param input
* @param defaultStr
* @returns string
*/
defaultIfEmpty: function (input: string, defaultStr: string) {
return this.isEmpty(input) ? defaultStr : input;
},
/**
*
* @param input
* @returns string
*/
reverse: function (input: string) {
if (this.isBlank(input)) {
input;
}
return input.split("").reverse().join("");
},
/**
* ()
* @param input
* @returns string
*/
removeSpecialCharacter: function (input: string) {
return input.replace(/[!-/:-@\[-`{-~]/g, "");
},
/**
* [ -~]
* @param input
* @returns boolean
*/
isSpecialCharacterAlphanumeric: function (input: string) {
return /^[!-~]+$/.test(input);
},
/**
*
* @param {Object} conditions:里面有多个属性
*
* @param {String} matcherFlag
* 0:数字123:大写字母4,5:中文;
* 6:数字和字母78910
* 1112131415
* 1617181920
* 100;
* @param {Array} excludeStrArr
* @param {String} length 1,212101055
* @param {Boolean} ignoreCase
* conditions={matcherFlag:"0",excludeStrArr:[],length:"",ignoreCase:true}
*/
isPatternMustExcludeSomeStr: function (input: string, conditions: any) {
//参数
const matcherFlag = conditions.matcherFlag;
const excludeStrArr = conditions.excludeStrArr;
const length = conditions.length;
const ignoreCase = conditions.ignoreCase;
//拼正则
const size = excludeStrArr.length;
let regex = (size === 0) ? "^" : "^(?!.*(?:{0}))";
let subPattern = "";
for (let i = 0; i < size; i++) {
excludeStrArr[i] = this.escapeMetacharacterOfStr(excludeStrArr[i]);
subPattern += excludeStrArr[i];
if (i !== size - 1) {
subPattern += "|";
}
}
regex = this.format(regex, [subPattern]);
switch (matcherFlag) {
case '0':
regex += "\\d";
break;
case '1':
regex += "[a-zA-Z]";
break;
case '2':
regex += "[a-z]";
break;
case '3':
regex += "[A-Z]";
break;
case '4':
regex += "[!-/:-@\[-`{-~]";
break;
case '5':
regex += "[\u4E00-\u9FA5]";
break;
case '6':
regex += "[a-zA-Z0-9]";
break;
case '7':
regex += "[a-z0-9]";
break;
case '8':
regex += "[A-Z0-9]";
break;
case '9':
regex += "[!-~]";
break;
case '10':
regex += "[0-9\u4E00-\u9FA5]";
break;
case '11':
regex += "[a-z!-/:-@\[-`{-~]";
break;
case '12':
regex += "[A-Z!-/:-@\[-`{-~]";
break;
case '13':
regex += "[a-zA-Z!-/:-@\[-`{-~]";
break;
case '14':
regex += "[a-z\u4E00-\u9FA5]";
break;
case '15':
regex += "[A-Z\u4E00-\u9FA5]";
break;
case '16':
regex += "[a-zA-Z\u4E00-\u9FA5]";
break;
case '17':
regex += "[\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '18':
regex += "[\u4E00-\u9FA5!-~]";
break;
case '19':
regex += "[a-z\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '20':
regex += "[A-Z\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '100':
regex += "[\s\S]";
break;
default:
alert(matcherFlag + ":This type is not supported!");
}
regex += this.isNotBlank(length) ? "{" + length + "}" : "+";
regex += "$";
const pattern = new RegExp(regex, ignoreCase ? "i" : "");
return pattern.test(input);
},
/**
* @param {String} message
* @param {Array} arr
*
*/
format: function (message: string, arr: Array<string>) {
return message.replace(/{(\d+)}/g, function (matchStr, group1) {
return arr[group1];
});
},
/**
* 如输入:aaabbbbcccccd 输出:3a4b5cd
* @param {String} input
* @param {Boolean} ignoreCase : true or false
*/
compressRepeatedStr: function (input: string, ignoreCase: boolean) {
const pattern = new RegExp("([a-z])\\1+", ignoreCase ? "ig" : "g");
return input.replace(pattern, function (matchStr, group1) {
return matchStr.length + group1;
});
},
/**
*
* @param {String} input
* @param {Object} conditions:里面有多个属性
*
* @param {String} matcherFlag
* 0:数字123:大写字母4,5:中文;
* 6:数字和字母78910
* 1112131415
* 1617181920
* 100;
* @param {Array} excludeStrArr
* @param {String} length 1,212101055
* @param {Boolean} ignoreCase
* conditions={matcherFlag:"0",containStrArr:[],length:"",ignoreCase:true}
*
*/
isPatternMustContainSomeStr: function (input: string, conditions: {
matcherFlag: string,
containStrArr: Array<string>,
length: string,
ignoreCase: boolean
}) {
//参数
const matcherFlag = conditions.matcherFlag;
const containStrArr = conditions.containStrArr;
const length = conditions.length;
const ignoreCase = conditions.ignoreCase;
//创建正则
const size = containStrArr.length;
let regex = "^";
let subPattern = "";
for (let i = 0; i < size; i++) {
containStrArr[i] = this.escapeMetacharacterOfStr(containStrArr[i]);
subPattern += "(?=.*" + containStrArr[i] + ")";
}
regex += subPattern;
switch (matcherFlag) {
case '0':
regex += "\\d";
break;
case '1':
regex += "[a-zA-Z]";
break;
case '2':
regex += "[a-z]";
break;
case '3':
regex += "[A-Z]";
break;
case '4':
regex += "[!-/:-@\[-`{-~]";
break;
case '5':
regex += "[\u4E00-\u9FA5]";
break;
case '6':
regex += "[a-zA-Z0-9]";
break;
case '7':
regex += "[a-z0-9]";
break;
case '8':
regex += "[A-Z0-9]";
break;
case '9':
regex += "[!-~]";
break;
case '10':
regex += "[0-9\u4E00-\u9FA5]";
break;
case '11':
regex += "[a-z!-/:-@\[-`{-~]";
break;
case '12':
regex += "[A-Z!-/:-@\[-`{-~]";
break;
case '13':
regex += "[a-zA-Z!-/:-@\[-`{-~]";
break;
case '14':
regex += "[a-z\u4E00-\u9FA5]";
break;
case '15':
regex += "[A-Z\u4E00-\u9FA5]";
break;
case '16':
regex += "[a-zA-Z\u4E00-\u9FA5]";
break;
case '17':
regex += "[\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '18':
regex += "[\u4E00-\u9FA5!-~]";
break;
case '19':
regex += "[a-z\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '20':
regex += "[A-Z\u4E00-\u9FA5!-/:-@\[-`{-~]";
break;
case '100':
regex += "[\s\S]";
break;
default:
alert(matcherFlag + ":This type is not supported!");
}
regex += this.isNotBlank(length) ? "{" + length + "}" : "+";
regex += "$";
const pattern = new RegExp(regex, ignoreCase ? "i" : "");
return pattern.test(input);
},
/**
*
* @param input
* @returns boolean
*/
isChinese: function (input: string) {
return /^[\u4E00-\u9FA5]+$/.test(input);
},
/**
*
* @param input
* @returns string
*/
removeChinese: function (input: string) {
return input.replace(/[\u4E00-\u9FA5]+/gm, "");
},
/**
*
* @param input
* @returns string
*/
escapeMetacharacter: function (input: string) {
const metacharacter = "^$()*+.[]|\\-?{}|";
if (metacharacter.indexOf(input) >= 0) {
input = "\\" + input;
}
return input;
},
/**
*
* @param input
* @returns string
*/
escapeMetacharacterOfStr: function (input: string) {
return input.replace(/[\^\$\*\+\.\|\\\-\?\{\}\|]/gm, "\\$&");
}
};