How to use vega-parser - 2 common examples
To help you get started, we’ve selected a few vega-parser examples, based on popular ways it is used in public projects.
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vega / lyra / src / js / components / pipelines / transforms / Filter.tsx View on Github 
public updateFilter = (value) => {
const val = value.target ? value.target.value : value;
try {
parseExpr(val);
this.props.update({type: 'filter', expr: val});
} catch (e) {
// TODO: Indicate error in parsing expression.
}
}public updateFormula = (evt) => {
const props = this.props;
const def = props.def;
const as = evt.target ? evt.target.value : def.as;
const expr = evt.target ? def.expr : evt;
try {
parseExpr(expr);
props.update({type: 'formula', as, expr});
} catch (e) {
// TODO: Indicate error in parsing expression.
}
}vega-parser
Parse Vega specifications to runtime dataflows.
