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36 lines
707 B
36 lines
707 B
5 years ago
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/**
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* Common tool methods
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*/
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/**
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* Determine whether a string is in standard JSON format
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* @param {String} str
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*/
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function isJsonString(str) {
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try {
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if (typeof JSON.parse(str) == "object") {
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return true;
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}
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} catch (e) { }
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return false;
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}
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/**
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* Determine whether a variable is a pure number, null/""/undefined/"34rt"/"34e" is not a number, 34/"34"/"34e10" is a number
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* @param {Number | String | } val
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*/
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function isRealNum(val) {
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if (val == null || val.toString().replace(/\s/g, "") === "") {
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return false;
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}
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if (!isNaN(val)) {
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return true;
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} else {
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return false;
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}
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}
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export {
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isJsonString,
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isRealNum
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}
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