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blockly > utils > string > isNumber
utils.string.isNumber() function
Is the given string a number (includes negative and decimals).
Signature:
export declare function isNumber(str: string): boolean;
Parameters
Parameter |
Type |
Description |
str |
string |
Input string. |
Returns:
boolean
True if number, false otherwise.
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Last updated 2024-09-18 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[[["This function checks if a given string is a valid number, including negative numbers and decimals."],["It accepts one argument: the string to evaluate."],["The function returns `true` if the string is a number and `false` otherwise."],["It is part of the `Blockly.utils.string` namespace."]]],[]]